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 0xbaa0bbfa9c13614fe46bbe7d15127caaf8801761abc94098d0d0cc6b06292628. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7cf0b39-b7cd-4e08-b31a-15fca49c44ab.json and https://artists.proofprofile.net/proofs/artist/c7cf0b39-b7cd-4e08-b31a-15fca49c44ab.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 0x34159238af662a040d2a29cf38c4fd266a0cf22697613b1401fcca6d441af7bb. 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/CH6630692009.
Bassoon Concerto No. 30 in G Major, RV 493: 3. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68cb8f6a65a37253ad60514ec570f72db2174a7174b73a1507920caab0fc2b5. 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/GBUM71024166.
Bassoon Concerto No. 31 in C Major, RV 476: 3: Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab7255d2fa8cb5e4b11ffc99579df719121f5043d96a7c17500b0594c45db3d. 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/GBUM71024550.
Bassoon Concerto No. 31 in C Major, RV 476: 2: Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaa3b5a0ed248b462d2cfe151bb5a010b72224ead0bcedb5b8ddd667e7f395b. 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/GBUM71024549.
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 0x94ca4e65049c88b0b08d78433553b6102bfbfcb260750dd4e934e684950446a8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:39:51Z), 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/GBUM71200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7155c27e5112d4d699c8cf8c4bfea8704afbdc284a0cd00e3246000e977764. 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/GBUM71200045.
La Donna e mobile (from "Rigoletto") (arr. Boyer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf704b17d8120e06304323ff49c192ea4a179938220eada420c1fe58ff1612e. 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/GBUM71024967.
Etude in E major, Op. 10, No. 3 "Tristesse" (arr. Harris)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938821087fbfeecccbeb99d5c2447f8ead05613c0a66e1ff43bac596834b442. 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/GBUM71024968.
Antonio Vivaldi: Bassoon Concertos Vol. 5
Bassoon Concerto No. 25 in F Major, RV 491: 2: Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76eec1852f96f041dba5344642ac64dcfc00a7288d474f292b631f47a5cd3872. 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/GBAJE0702661.
Bassoon Concerto No. 15 in F Major, RV 487: 1: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e512bff5e9411bff5881aa4f78f6d1da6edc6885e86b4ee44f28cb451ae958. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBAJE0702678.
English Chamber Orchestra plays Vivaldi, Handel & Telemann
12 Concertos, Op. 3 - "L'estro armonico" / Concerto No. 9 in D Major for Violin, RV 230: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b74fd2c505839cbddf053edb0c8c2efdcaa68ff494cd1ffbc75e8c339ccd0d. 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/NLA507509607.
12 Concertos, Op. 3 - "L'estro armonico" / Concerto No. 10 in B Minor for 4 Violins & Cello, RV 580: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1013b72f9ce2ce5c4996853009ac81ee0f694bab2706e745ec4926416a4263c. 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/NLA507509610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068a490eb79f85bdf874b1a03f83521ed65a67815b8c6f96798fe4d9afcfe598. 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/NLA508700601.
Oboe Concerto No. 3 in G minor, HWV 287: 3. Sarabande (Largo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0fa04ee7735efbbffd0f5b37978f94852caf134579a0d5dcd33f6b682ed043. 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/NLA507100430.
Magnificat in G minor, R.610/611: 1. Adagio: Magnificat anima mea Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf7ee29493a7c0fb227df1e8afa075ead529ed76c76b2de25a1d06038e5812e. 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/NLA507801936.
Bassoon Concerto No. 1 in B flat Major - "La Notte", RV 501: 4. Sorge l'Aurora (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71101431bdc60319f754217e6d927bb45cd641a3a3a406c795975cd24929eeaa. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBUM71024206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc0e222461797e820693ebfcebb192c1df17710172fac2cc2a8b5850685874a. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:34:48Z), 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/GBBGL1102247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915ded5731c346e13fb2402a5326b7673259b4bfa6393c8a59a3557fb90c357a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBGL1102248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417218f9071464c8d4f4071fb12f092ee46ca7f1098834595e44a7407a3ad459. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBGL1102249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d945c91f652cd35c457a01d4d8daa19618da53f6a124f367cd6fe24517d5e1. 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/GBBGL1102250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61ec31d4341fb3febcb1fada9cd487089614f1a33d8e00fcebb6926c49e47fd. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBBGL1102251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb4be8791a965a415817f1f5858c1b9724ea86426b279790f358405dd50c60f. 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/GBBGL1102253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f02f877de6db80707efa1fa5b513bbe2cf50e0465181c8d352f4359178d18d. 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/GBBGL1102255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fce06ac54700e99f51e24725af5f3caa6ea8e785fb611aca19c3b96c8b21361. 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/GBBGL1102260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cca54ff548886212daf27138636aa10cb83886fdf01f1c651217c16a186a45d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBGL1102262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c54abed7fa360506b4a91bd45c2465cf13c743265a45e7ec0f66895ace5474. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBBGL1102258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f67cae7d303657a5a229c7354ba3016d658c722b8b234ea9ba00733163bd68e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91502579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd96367a58d23a5484515d2138b95e826fb20091d5ccef6f7e7d9d39baf16da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQX92003855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0417d3da0d8fc18908fdb223363ef82cd52f14923459e02c7f9b64ef5c63e3a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX92003971.
Lyceum Philharmonic at American Heritage School
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad1675c78d25730706d92f7389c3fa939d8c90f0b5a247193f29b9f945f2eb7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91201526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7798ae541c19d77ac0d0fa1c444f32685b6a38e81e3b27654666abf9cf74234. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX92003972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c05a454239385238e2c2459c4b771891a8e14d833ab02ca0dca5a5253e16de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX91201523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f381804b9eea87152daae33ba78303a09f3feaff033c22f2c56549ed3c9c48. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX92003973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8872b316c6c2c0de361c0cb0e1d0a3a24907cf0027c3f9ccab1e3037a75f98. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e16d50c248d4718f400067910181728bda18b1a47837e38294bbb176c90faf8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX92003974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52e6a09a9d86ee7bf436085e17cabca0c16825a5bf70e38366d063f68c3f45a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91201532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0562190da624210a06081ea70657ea17e2c6b5961fdd82182edf0bc89c90c501. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX91302286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a9147deb5b492b4ea850b0b14f9c00e6090ed9078419f681577fc82504a0b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX92003975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2501955f9d6bb4145cd95b27d7c09c9cf1d9f6cbeba6fc316013a304fc5ab8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQX91901897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45dad88cebc1cdc07f5ec95cfc506810e1437ac7c78efb44699f952306d9821. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX91300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90ba4f3a0a531c57f9af364508fad60d1340fbab067e8a60574704dc4ab3f14. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX91902621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193cc75336d75fbf926539dbf35a815ae81c36e6cb59aba6a79d9dbf875cb1ee. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91800568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1164d43de1225c9ac721a5e694fa78dbfbd14c826c7be933a6f94fa0d47259d4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX91902620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93bd490a7653b5a013ca245dfb98471f0172737da02a9b7e1eb7c9e79e029ec. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91800334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac206c754b15e2d2356d63982277503b02af436870257db3cfca0e5bfb34184. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX91901456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c86bec3a0c1f4dd725601b770386d82b202a892b2b0b36aa618ebeff0fabb8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91701532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d5d151ffc574cf312b7b7e4ccbc1852c546335d443c4e9d92a7d045601ae62. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX92001251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae09d249683c3e14c30c592076452241036594793b87fe77377fcb21840c434. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX91201530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ca9c183a68f7bdf0fb1559347cb2e133142dae8dbdd9e2fab8da685a1040e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX92003976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf136744e2135afb100e373c7b13bd94ef93a4b831e95dec273fecfee8ff094e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX91201527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ca428089cd0dba34df58db3a4f0c45ab5b4a0024547eaf156c59a57be96345. 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/USQX91201534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d9c9ba0569bad7eaa378949acf579cb23ae1a62a41469329cc3c97c26d9a0. 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/USQX91401117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7e0b4b8618120e696b78815f5732862487308740008155d25c4ed20c1a3897. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91501911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fe793549916040ce86e2f9facd372f10fef366d6cc85ab7103df3c42e55cc7. 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/FRX201650977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cf1191112bed7bbf8d8b7fba4eb0ab3467f20affb6ad543e5aa7a17e77b233. 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/FRX201650978.
A la Palladium (The Music of Dizzy Gillespie in Latin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c7f2b9a5af44a56749a5d403c8b1dc134a02ec355cc780eed1f297e69d5c55. 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/QM9AA1565062.
Weelkes: Grant the King a long life (English Anthems & Instrumental Music)
The Choir of Sidney Sussex College, Cambridge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a50773d57f108c29db0386911cd42ff333c9c98f93997779ac68df314af77cf. 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/GBCJG1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804aa8829cb839271cbb355338d1ae98d10b35b8197a4d4f01d735a07cadbc23. 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/GBLNL1800252.