Mark Williams may refer to: Entertainment Mark Williams (writer) (born 1951), New Zealander academic, writer, critic, poet Mark Williams (singer) (born 1953), New Zealander singer Mark Williams (a
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 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 0xe06ce5bceae37578a822a10127d06db5b52e232884e4aa797ef55c155a6030f1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32fbb934-1ef9-42e0-b170-b52fdd70ecb8.json and https://artists.proofprofile.net/proofs/artist/32fbb934-1ef9-42e0-b170-b52fdd70ecb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Sweet and Merry Month: Music for May Morning
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 0x3cc68458855d8d201b840e6317c77ae8f7fb9a5683cff1eb77b2785638e13d56. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GB6CE2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dd780b5bf7c59bf7379487d75e24cb3f0e52cde2f112bae97214d61fbc5a25. 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/GB6CE2200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a4056a52e94f182848b01b30ec556bbfc430948f97e284a4b77b87572ca4ad. 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/GB6CE2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a334a6551d4c46cb9a63a1aed6b028649592e7e002b70f3879c50c1a3b3d45. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GB6CE2200035.
Somewhere Over the Rainbow (Arr. G. Turner for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933ef0663a960ad02552582dc1d5ff1455de6bd350a95d8de49145902d03b83a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GB6CE2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0570dde1739ca450187cce165d530c91d0831d9625dd55abc31f7aa5abaa6a6. 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/GB6CE2200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ef02d7c514f5fbae4df62e212ca8e40ae5b58270c45ba05fa26f9790d87b20. 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/GB6CE2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be7136c570068b42ef42fc6c1dd1a34fe19d3b1d1c5e00f8b1a1d4b5d57e9f4. 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/GB6CE2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe139223cdfe260341596873422ae955e94e463c28dd7298a2a6ced67ddc9bc44. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GB6CE2000011.
The Pillar of the Cloud: 5 Centuries of Oxford Anthems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adda44698c5beb48ad4e3d22251eaff1059c37cbec1f273c657d3c9d3adeae0. 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/GBLLH1748106.
The Evening Hour: British Choral Music from the 16th and 20th Centuries
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44068b250cb5958610bf2992350e25d8a2861715bd08aff8fbee2135e8982c37. 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/GBLLH1644602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f5f385f9e8e181efc6c6042062a467d57c3c0a991f16a66de5ab786d1b6a14. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBLLH1644614.
Out of Darkness: Music from Lent to Trinity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5ad6f7264c61807c88974fe7c6a7fc2b36b7086a058a3f6f737f15da46cd22. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBLLH1540901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563f210b86f754d811556dbc40aa4802be83e34b53b40335579e41adea085e94. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBLLH1540902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034f68d8d2e8870ed3894f79e1a613d1968976578eb1572ee5788244c28853cc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBLLH1540903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e254ea8c4503138251f9b89b36ec9228a2ef4e1aeb8ee5b2e139ffb31f8978. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBLLH1540904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340f287b60d25235f3132ab0fac63a3da722bf5c4c70eaa349609d75910c7393. 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/GBLLH1540905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa07828c7d92213233731148574d075cb365081d9ba91d7dc838c21548eba15. 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/GBLLH1540906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30811cdf52a1bee4c93f29093181d0459d931336b5985b95d698aa0f53d76227. 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/GBLLH1540907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4102274c9cb2e01410710721800f95120e30bbc2d4f39cbc593841733c5e288b. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GBLLH1540908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5e4b652c83323bc7bba5a84facc7975c9ffe956802f02c9dfabfae6179fe23. 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/GBLLH1540909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc205b7500671c54019c450dbb5be0b822855ffa47d218786123b6eb2d9d5b930. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBLLH1540911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f30015a661b87d433409efe836362636c1ca6a0d6e1cbf46e5fca74dbecf6ab. 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/GBLLH1540912.
My Beloved's Voice: Sacred Songs of Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e048035efcf0f081e5d2afc5d74766370f1c47a2d9dd7193ac77fe88ed54b3. 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/GBLLH1437001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8692feea842e2db63228c9ed408f53dac9bca0a830a1195ffb548526263bc959. 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/GBLLH1437002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc00ce3ecc1cd2c11ad90af80b1a91cc8018f930a5f0f871fdd92a493eef2759. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/GBLLH1437003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227e4a5ae88b3ee6d16b20eafe92e48f00106ae324a9aee48af543c65c4e9ad3. 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/GBLLH1437004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ddd41e321f958836fd1c22bb5ac108cac94aa42a43dcc21c8c27bea7fcb768. 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/GBLLH1437005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8595069c7a26875c49f7676b9a4a818c1d61fc41d3f67f2be50573f41b9c7827. 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/GBLLH1437006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe388464faf940314f69830155d52fcfc9b2e6e103032589bcc0c96dee7257de6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBLLH1437007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa22ab450cfaa87d68d963bd28aac68b34e2d785e0bfffe5c37d00f94efba37. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBLLH1437008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81515a34005e04a8f4b212543b598602ac8bcc25216928e5e70ff723c4297978. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLLH1437009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbacc818da1e44cc330be07d614e57e1a261fffac48e3fb0c60256e985164b51. 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/GBLLH1437010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36ad0b92430634f392778d231294eb44ee4a273aba63ee270357acedc329422. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBLLH1437012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6460373339f3199949903746eb88cdec41783e8fa8cb5b0d703d20e8f190d725. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBLLH1437013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695084109be98410504d2bef4ea6fff2351e7045cbcac500b98227db5607756f. 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/GBLLH1437014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc02cc21936e9690133a7e0d3253149f32b53f439af0bf8e1cb581089fe4e06. 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/GBLLH1437015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded1ff8850a7f61a616e6810a482065a5057799a546dea338faf579fa7dcc1b7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBLLH1437017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc75f60e5de75da490e98b03fb56d37d257a8a15b95e70707f7e1e61b50f356. 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/GBLLH1437018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bad3a49b135dc7c8b892893e7c4ac6c507ac482569aecf5e69edcd038887290. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBLLH1437019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fccfdffeaaaa8b8088804453001d25538543f835af42747113f7fc46435c77. 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/GBLLH1437020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e2544f81603f68532ca386c95447cf48c39b2106c6bde83a594d68aae2b272. 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/USR9N0922501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb415a06551282c59f085710338f75c54e726fa78f9965a4776b07b700b089231. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USR9N0922508.
Choral varié sur le thème du Veni Creator, Op. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94654bf6b8c6edaf7966fa5571da29545535f2def9290b22263ea0054395f0d. 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/USR9N0922512.