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 0xa33b1702596b9aa43816f193c53d20ae9dad5e4459ea7c8bec7d2471304acc0e. 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/21fafaf6-c1d7-4be9-8e9a-38c71b5a445e.json and https://artists.proofprofile.net/proofs/artist/21fafaf6-c1d7-4be9-8e9a-38c71b5a445e.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 0xc72137f2e07e8f407b8e599db2d1135870bff48d50787fa7bbf5dfb925786edb. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USHM20566608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f00d447c7154ff28d772b3c80c917256054ffef4f87476e46daa3898d74d641. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM20566609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac6e55f953b6c758ed7d78a71a9a8e3db1f5d936111a76cdda194fd9c57c877. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM20566610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0171bf611f61c8de8859b1656f71c78066de0374db4f1f1544ef170ff8b18d75. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM20566612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f5cadc25a9af0c9c61234963d582fd2c400ba81f91a80b0e23c097a43d2258. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:41Z), 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/USCGH0671389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0135ca6fed855928b15f738ccdd4d9d70c187dbbe759b299f4c4ee42036e5f29. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USCGH0671390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96729d93f97d8097650afae633c3edb34438d5239f23e71ce70df493638206e3. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USCGH0671391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94c3dc6f0cd1622bf4d431a0e1734707043c9a178fa1a46df3857813e9ce9f8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USL4Q0809485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d16c0b3798647c8580bef06d40a41c9342c258450e0e17e6309bae545014b6f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USL4Q0809486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0849fe20bb8804223bfc915872905f83b500ea9a5875500fa421f0ba23e4e7ec. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USL4Q0809487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa618b7fbca744bd6b0058e8a5a71fd10b1ede70a461d25cb4b0814a8ef554304. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USL4Q0809488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda926d3c77cad62cbb331c716db1e403d6e022d86e282fb5d2d0a3e842c1310. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USL4Q0809490.
Gentle Embrace (Deluxe Edition - Single)
Nandalala (feat. Prajna Vieira, Gina Sala, Benjy Wertheimer & Bodhi Setchko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0406ffa28df98f1a795a50f389b2106988706c346dfc8fa512aacd697d561e1f. 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/USHZ31200019.
Zero-G (feat. Tina Malia, Benjy Wertheimer, Prajna Vieira & Gawain Mathews)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f8d9dccdf2cb9b17bb8dd23d2f2d73574cec6e428a2bf0674f7741c6432d89. 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/USHZ31200022.
Confluence (feat. Richard Russell, Sean Frenette & Michael Mandrell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff80a540ee1124684066ae51e7f2e5e075f98dbb17735f9592318aca6370682a. 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/USCGJ1952271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807719233d5e6e25cec576acdf7dbfbc7bf61c5292b79200b1bd92d19a3afcbb. 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/USCGJ1952272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61faddf923f8b26a2d2622c44544d774a7a22c045928cc1914e95271191cf073. 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/USCGJ1952273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca532579d042dc154cff5dcba8f7a6725e5d6898423e80f9ccc1a2174f3fa49b. 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/USCGJ1952278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba233c26f67a284803e0ef257b7aa19adef84827a856b3b69e17f1f15342db78. 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/USSP52208042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5ffd2cdf67467a7da2aedefea26941414e0b83a73973986b4bff159c381d54. 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/USHM80981481.
Kirtan: The Bhakti Yoga of Chanting Mantras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82a6977d923d843ba7a881768d6775026ac867fb97d6388e6e8595249f6d423. 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/USWS41816802.
Yoga Music Mantras & Chants, Vol. 2 - Sanskrit Chants for Yoga Class
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6379c0808e9a7b53fccc77d3e920bd3d8c3cd602d58ec1197ad001b7e2faf864. 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/USWS41415502.
Sea Star (feat. Michael Mandrell & Mark Eubanks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe9f8071f05c279681cd12434a2739f0b26c4c68798fb90f06b5e5ed5d27571. 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/USCGJ1952275.
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 0xb8e15a40ff9e3c413a90963df56ac7b17b6a4a1cb826044fbbaeb0fc54fe32e9. 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/USCGJ1952276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8062bfdeb74c85d69424ad02855d3270d8a40b1bf6e44c1271609973acf55f01. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USCGJ1952279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e08b792fc3f7f56e9fdf1022bb364a250fedb4a1a89e8d95e5b7b70f9711b8. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USCGJ1952280.
Bobo's Farewell (feat. Michael Mandrell & Mark Eubanks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdde22ea56faa2c0ed1576f6e49b75925d9741360da815c916e77681b4f1c91. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USCGJ1952281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a96945115115ad891c4a207208a6da277e54a95051a66fd2e13151fcce7250. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USCGJ1952282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7c4f2418eefdbb0e16645d3f15ef02d9d732fa3264a95b90b5cc39982df971. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/USHM80981485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e39bdb98dd7c6c75f51ec89a9868be2db0a7c8b96d480bc02d7b819a0b895f. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/US8XA1400103.