thumb|Lajos Bárdos in 1948 Lajos Bárdos (1 October 1899 – 18 November 1986) was a composer, conductor, music theorist, and professor of music at the Franz Liszt Academy of Music, in Budapest, Hungary,
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11ae1444bfb7bc85282769e657ec960119b328ec43438bd56c948702a6139b4. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/792391af-af27-4e93-9255-f9ec8962433a.json and https://artists.proofprofile.net/proofs/artist/792391af-af27-4e93-9255-f9ec8962433a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081e19cd9a703103a3ef5255846fc036839a31edca8941ee6d8dd41a81311013. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0858604.
Elijah, Op. 70, MWV A 25, Pt. 2: No. 28, Lift Thine Eyes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2873b81c13446d48d4cb05a32d450254ba74b6ba88b0b91a862e4a95e7c94957. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0858611.
Musica Sacra Hungarica. Geistliche Chormusik des 20. Jahrhunderts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b4e88db3b77309a766963e6ebeebbb185a8d4d3cf427cdcf9001e9f081fc9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fc1a7e8a2833a0b97392d4d8a215c8af30e807bf60a7c5bc6cc154d8ead6f2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2f4b11d6627285e51dd4b11b06a316b4ae75f7a4e4f0eda1e0062486ab5423. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce409c851f2e7214d0187187f917b08114691cf22c03301cdb9369fee64332bc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0352f68785976389a3ed2220a404be01ac5a62b45887bed51dbda8568d62c389. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e7ebc2f078466eb1a7c13d9b784d4fd37d616b2d6cbf2bc05827086c78aaa1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcc3ff2939c932792ac9d6eb4754858c94c781b76103052aae57a0fdd693baa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8311d0493a060fefa1dce054eb4a3a065b7db36feea79f0a02ba2e2020ac857a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecee5c598dc449caea3e26ee094c3448d525aab80e5c910ab0bb15093bbf77dc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6f548cf4fdb9b9715a6f90fc13eefccd2f158246817bd57a318c58174dcd34. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261f7ad630f7e8f8d7e7920c0fd8ed5fa3be83cc371693b5d4466085b74cac15. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900085.
Dialogues des Carmélites, FP 159: Ave Maria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae59f76faf706329cdc61e09e7c51e16708c9049f73444fae22be15d9b503940. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900086.
2012 American Choral Directors Association, Western Division (ACDA): Tesoro High School Madrigals & Box Elder High School Madrigals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd977dc53b9bdca05aadc0405b4fd6039712b243ea0b1dd34e8dc3b3c16b496. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVZX1211906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dab13b61ee731cc43bc55a5b20b6bf3f95c540133496c2249f0af911efe357. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541622317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d812bea4efe31bc48e98a5ceebda0d34a3788d560fd1eecc74ec6f30859a7e0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541622318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1b1380ad69683db2a98465dd416761c40e2058a4e7173d18d70c1bc5241843. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541622321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1563c0725b9703e17751780027ae25f08d0028e8b0b85afb1bf461129ee0ca53. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541622324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd307abc081e17bc9e705f42241052c97d945edc2afdf38425a23e73f6297c3c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541622326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a0d4f8cef625f08b143629539ff2c4c7bd6a8107f4b7eb2e31dd912c41c2ab. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541622329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139fb0453cf8d822b796978ef8908c1ec8ef963f2ed3ffe374cd8cc3f5872476. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253179801.
Menyecske (the Bride): No. 1, Lassu [Slow]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8757dc54db116c16732ebfc188d1cf8aa859a3dda75d558a98f2d5c4dbdb210. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253179816.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659135cb306b046427df32596f6b67f37c1b3fa3ca5baea9f0d3df40703bbe91. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY229000266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c7b44926be1c99daa8176118947f70544904e2f09acca5fe71cbbfab9ddc8b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY229000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff9d00c2f30309905a0ea6210782557cf308c7ae90cfe6013d86dc1e45158aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY229000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e34257ea36de1192eb3b0444891bae873e9dc78d4d37a69b7fecdb32346136e. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY229000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1dc33d69e9c85f3aa2359ccca8fd9ec9c95d109155f86a26d9b78f47729e56. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY229000273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d89b7be4ff391a4d5166178242a4319eb2b0daba8a216af860705a3383cc93. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY229000275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2dec68eeed750589162053b8b102bf5e73d46d1373cd4070055213dad6446a. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY229000284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71b2260cd766acd2f3110010c8458961cce509ec2131399d7f4891fd07a71aa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60958882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42c30e618cb54ff552f278e2f55145a05685594c7f6d5744bf5878a57a8dbf2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60958883.
2018 Texas Music Educators Association (TMEA): Montgomery High School Chorale Women [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9a247a620ef5505baf06f74694f8e7005d18c617503da4b565b191f47a1555. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVZX1809904.
Somewhere (From "West Side Story") [Arr. R. Edgerton] [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907114acd65b6c5a451df2ed7682a067d56688d3e653f9a7ec858d1f00cf5ace. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVZX1320219.
Harmat, A.: Mass, "Assumpta Est" / Bardos, L.: Maria A Mennybe Szalla Fel / Hymn of Peter Pazmany (Solemn Mass in the Matthias Church)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4462a046e09985c09fcbf4fa7855d947f4022fdd38f2d333743cf9c12e6ba331. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA251287915.
Parasceve Suite: III. Pater! Dimitte illis!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fd5bd8b738efe41ceedf691d590617de9a27f8d5fa034aa4a73474767eb3cd. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80711142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3148739ae3e6e820b33ed4f9c67431a626086c53a71366e5a184b55cc03f3d22. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80711149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2a5bd65ec29531d3b03dda299a0f0acfef6fe792ae8b0bb3fe7032813a6e7f. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80711145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619a23249aeb3d44487361f3331c465114454eabbff70107730de02f7a264c8b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80711146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440e6bda0ca01ef27b680a125d899ea46dab5df36bc268f306fa33726357a257. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80711147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3343f9bed7cd0aa675ef565a210737e40d21d616f22411ebe055fa980114313. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATR981308444.
O Rising Dawn: Music for Advent & Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5227dca83e00b24bf41bc12458c27493dcbfff9212ad3640b8672ca1f179bf. Chain 2 (Bitcoin): anchored in block 957029 (2026-07-07T11:17:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCWA9800303.
Live from Europe: Singet dem Herrn (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e633183b10abb9d2d70d67ddec903c58d496f383f8d7dec470729eb7c1cc17. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVZX1320514.
The Herald Angels Sing. Choral music for Christmas
"Dínom-dánom" (Universitas quinqueecclesiensis - a pte 1. Sz. Gyakorló általános iskola jubileumi kiadványa)
2018 Texas Music Educators Association (TMEA): Seven Lakes Junior High Varsity Treble Choir [Live]
2012 Texas Music Educators Association (TMEA): Vela Middle School A Cappella Choir
ACDA Western Division Santa Barbara 2014: Cantabella Children's Chorus & Phoenix Girls Chorus Cantabile (Live)
And I Saw a New Heaven: Choral Music from Clifton Cathedral
2014 American Choral Directors Association, Western Division (ACDA): Harvard-Westlake Middle School Madrigals & Foothill High School Madrigal Singers [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41189236350852bfcccc34e54122d0df0d6193333d634f338294ee854ad11b2b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03c5d24cb530237ce580e9eda6b4ebd59e6092ef9c3e836d325fae9c97abc46. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803908.
Es ist ein' Ros' entsprungen - Arr. M. Praetorius; Canon a 4 by Melchior Vulpius (c1570-1615)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcb8eceaa9500128934f22ebe95aff7019005770d1f4a389d61dc336931baff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe9ede74dbf2bbf898db58b8a93940cc412027a715d835f41b257d9d82d848f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a40c00e1f5a976d1e2cb522bb83b64a7724808c7191c9de43919a4ba34f74bb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc099856f6504fb544d45fc27e738434f525533c946135a4d3b0bea5992b630da. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fff4fc999ec2b57da77fae8d53a858e15cc53e876a6026fa13474dc57cb698d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3db38cf6018f6421df7b9651b13be5269db406b177b15a26f70f11d74c4350. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3715f229724f570264fb3286a6bb98eafdccc6e05a690fae6ec9c0cae06567. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217efa7a489d101911c57479ef3fb904fceda8d4b295f3e52e5850f2fe2a391a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1623402ed43d43cc8e602be69daea444773b541cd6d8ec256fa57bfe81f13f5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee0965488c71974b5538f295708c34a4d20236c0aabaa0621826a32a68ea946. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576dc3b999b167b335b81615e8fb2c4a0bb5fc42e92e4611661ed84bbc238186. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYX82236963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0bd3a9be36e285a7ddd678f95cd18f739ac329da2dd0b01cd7e1b277af8666. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32307463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069dcea49b682ccf5bd8ab2839a919ae48cc213644c1c15593cc1b9abc09d4d1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG021022203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857108051ad5f6a2fba47920ac814e85b8a8222e6ebde35526296d9260aa3d77. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG021022204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1956d78b6534758373969fe3b227c8a5033d3d2d072654b9eec9030c813207b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG021022217.