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 0xcb5197cec0e4d5f36a356b78c355718bfe49fe893b4889fc98c8d01f3f03cbe8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99b9a424-6e19-4da5-9ebd-34fa08d94860.json and https://artists.proofprofile.net/proofs/artist/99b9a424-6e19-4da5-9ebd-34fa08d94860.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 0xcb03058a0d7f19bfcb93dca520198349d6b14aa6ac087a0523e85786057bd4eb. 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/INS182400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1a14b2f9a2d027643501001344f76eb1d18360714f904cb7b2c2b27168c4db. 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/QZNWZ2453548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3befdc29b6b89604d48f9b56b979c99d743b5715ac413c5f13c0e3d869b69af5. 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/INS182302964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82748dbd539d1e35fb57924c50c324c8caa5e27e9dc7f2a4a3b83ff4a2212f38. 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/QZTB72387413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab86eb855c70aaf5bd2bcbff460c3b851b5adbee2a89360a53710078be08adc. 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/INS182302483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eff61716d5e38727c228489252d17dc64a4fe92bbd153e958e973ab5b82beb. 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/INS182302144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f6aa2daaf1655f7f1a71e65aa3d9ac92b51740f5868e0c72e90fab99ebce0f. 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/QZDA72392247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bb92ff05721edcfddee724ce4718c1a512c9d4469f35a799b649a2c5bb88c6. 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/QZFZ72301832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b82137775b70f47f577135a7e06ae768fc41ddb7557bf0ffd14f93392977752. 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/QZTAY2233281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03a7bef8375c25ec0f5c42822d9bccc79aad30dd46d6f4f155d1bbe114f9b0f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/INS182403688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e55e1dfd99f8ea1eaba7e15208306e0fc847e9f7fd959e6b25fadb054ce5e5. 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/QZZ792422662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc298812801ba380c83a77405ca5a67cc09e89c13c4bc4dfe7bfc7b99e776a3. 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/INT102201665.
Sri Guru Harkrishan Dev Ji (Anthave Avtaar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3692299d968b5d62b4c28ec58a3893b03097eff5a8c24b12551addfca5f9d2. 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/INT102201670.
Sri Guru Teg Bahadur Dev Ji (Nauve Avtaar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b72c3a687c3da77f8e31f8d57fd18ee7932787ca4fa323fd8fdae29cb7711f8. 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/INT102201671.
Sri Guru Granth Sahib Ji (Dus Avtaar Ki Jyot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fe62bfe493f3634c875cd70ab4577de814eaa56e1e8a4c775817061f4a51b8. 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/INT102201673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6732a76d6085c55c32649637235d893034aa1f079240d1f13615689fe9e5108e. 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/INZ031407372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310b2630b611aa1740d94dd3d6fa5c691ae2faa803b07a5ed47fe9b89309f4c9. 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/INS931609955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a0a014d45e50a6bb61f4b52edf89ea30e0664b99f8525b1831b745a669946b. 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/INS181500819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3824cab6d16b2d4a3afc90374dd29c4e33d61280753cee157a67bf879678fe30. 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/QZK6H2354362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7083f41db76ed60b94967fa5ebc51a6e94b2bd4991345ff9be2622e51867e9. 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/INH101707227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050397a3efaeae26857d361ed92940cf69773aad49e85865982f55bcd3d8ef71. 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/QZTBB2254118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4a9498ccf1573e6698cc05835704e19379543213e8df799d2fd5344ca699be. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZWFL2372603.