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 0x7d53b17bf1d641a0fbfb070b8587c191849d4adc874e3215188582b4b9c822df. 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/73d0742c-d512-4d00-aeea-7a6fe3609166.json and https://artists.proofprofile.net/proofs/artist/73d0742c-d512-4d00-aeea-7a6fe3609166.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 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 0x4a61e50777d1a1f0cd126bb15b006922d8ea0cae167a2f29c87a7ba6578f244b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/INT131810918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9075475821b42c9609f016bb86c809edb362089dfaeece772ee94e00e54318. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/INT131810919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ce7be7bc7d0e7460926059ba759384aa3a7e13f1f897d88e7917a0e8226c3e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/INT131810920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1a2607f5ce9b67407f7a30e79bd2646f44960495dbd7f2b79be63687ea336b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INT131810922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc954c44931ce532ac34f756628b2b4b629a3c9f687cf832b516b4c07f82bc5fa. 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/INT131810923.
Shreeman Narayan Narayan Hari Hari (Zee Music Devotional)
Ami Montro Tontro (From "Ami Montro Tontro - Zee Music Devotional")
Amar Sadh Na Mitilo (From "Amar Sadh Na Mitilo - Zee Music Devotional")
Ami Durga Durga Durga Bole (From "Ami Durga Durga Durga Bole - Zee Music Devotional")
Amar Chetana Chaitanya Kore (From "Amar Chetana Chaitanya Kore - Zee Music Devotional")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6818de6dd25581453927351a2b344f3613de21fee01fe2d15ef025b59e9a4ce0. 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/GBKPL2143671.
Maula Himmat De (From "Islamic Devotional")
Ho Karam Maula Ho Karam (From "Islamic Devotional")
Twisted 2 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324dd60f8365abb776d69d925836c9c2badbbee3d40a83a99bc6345af880c87a. 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/INE182448438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfee9b4cbc3296122ee0ccb8d5bed6320a9e8754dd96f720e25073d8adf76c05. 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/INE182448439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a41c6ac8290bb4cfd8ee80aeaa1e176f8d280d158affc1fb1ed534aedd794c9. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/INE182448440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaf537964e9e5f511781104a5231eaa392a54cbd9b54a6493e59a2ef93f071e. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/INDI12500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed01a43e1539fdc4448b1aeeacd4d4bb9e6e1828e280538fa44f88b68c8c0f02. 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/FRX762560279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6215e48046abd960e22565e18e77e2294fd459fe34234c7dac6e204a850ff6f. 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/INM201802967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6215e48046abd960e22565e18e77e2294fd459fe34234c7dac6e204a850ff6f. 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/INM201802967.
1921 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd335db10ace048f913f7436f400a3c93476c90249a9653ad3feefe157949b06. 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/INZ031403090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c7bf543512d73aaef196162d709fed5317c1a2cc3d2d4ef0fc790907ed2f05. 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/INZ031403091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a0c378f8a3b954b21cd32ded39a063f0fefe9db2d92a12c27926302e40e4e9. 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/INZ031403092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d207455fafdd102e67ba539cb4258c2c1f7e7f2554c5b2b89fb32f9eb809b0d. 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/INZ031402681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d543844f368637918f28309778af8f94596f9bffaab9f71ea6a36092f8f6af1. 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/INZ031402324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0b6568a964db73ca6a021c5a6da2dc9e0a865e032c474a81a87428ddb9dffd. 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/INZ031405070.
Aspirants: Season 1 (Music From the TVF Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64773e1ded84773ac53bf90d178dee5868ba883b86933c22300b005aceb26a7. 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/INC442100016.