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 0x346bbee8d33e07f49483a5c500d4fc1832638fb5a3a0fac88fbe967877348bfc. 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/1d84577b-e182-4d5d-ad68-93738e0264a6.json and https://artists.proofprofile.net/proofs/artist/1d84577b-e182-4d5d-ad68-93738e0264a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
IndoSoul (Looking Within to Look Beyond)
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 0xa0491a8d799499745c61f388924fc9671f3427d3ce347c005a7a78a7aab825f3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZES61944557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0368dbdb9ebd7df67fea7f5c43e1ce928e686ae2092fd1881b25c1abe9039a6b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:52Z), 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/QZES61944695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3493d6bc8792594f6f654ca52ad83c9e248f6e2647904b84e217646f75b4f41a. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZES61944696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeec19e38f89b6a03dc5f9c231bb087cd4441fa7178cb02b3eef85139f846a19. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZES61944697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf226e85c39eafa223eb949f18ee7341efcca47fd89f6b2dfe61f90e5a8374233. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/QZES61944698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b23ff031cad3fcc32069017c955960cdcfb8d2961fde9e3ad358de10621dee. 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/QZES61944694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05ffb45c970a60f1fac51f785b14ef3f9bf45f8cc1c15cd10f54ab6c2557786. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:02:34Z), 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/QZES51910344.
Kuyilai Polave (From "Two Sides of Karma")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef1a9fdcc591c32fa8e55619abf881422559b59692929c0d96ad6dd9ff83f8d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES71983587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ebf63d689f29b1fa2242fb2d95dc0e22f574b5864269c7c8b056b5bb8c50fa. 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/IND292208360.
Dew Drops On A Rustic Memory (Akhilandeswari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd7bb62c884c54cf9d44a82aafb920b203f3fb8cc450333155ac55f04a0171d. 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/IND292208361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fd8cc3baa6d3d1268e884589f271bcba2548c6c12d61e25ce843ae600f378a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IND292208364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef154c785293606a3fe9bee99839d6a6ac2143e53cd59c5bc8c954e0791d679d. 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/IND292208365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1041c652cac9fd98f2dc631a8f0e16e970734cc7e4a8124d9c74b420b0c22237. 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/IND292208368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c792801111a132fd4c2641c336f86e480602c23fc9cb82232f80e67022fe6bb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA062370573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cf3b97ccd8f9beaab09e57ec2c43c80c6c4dba173bf3ef716ff25329a34a24. 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/IND292212498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cad4c4a83572c53c1e94a6066126f3faa379baea6a60a52731b367b4a28a35. 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/IND292212499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c3dd73daf57a2510b5094ac2873477a5c561ec62cb57510bd8edcd0da0d9a3. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/IND292212501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1cc0c9c458c0d951265914f74cef6e8eb96fc57c9851af425a6ca05c0114a2. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/IND292212497.
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 0x24dea21b20d36a3810bd69d6ea9a06083f738b0b7a5a6c609c4f0ddf1db0a797. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/IND292212500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1a364e85856d668be2ac9e8b5cd62fc5e71beff1d517d5a3e22ccbbe650f4d. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/IND292212502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e15e83036a7751cba1c5103f304bd848907a545d6f4875eabfcfb3d5fda9a17. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAIB2491660.