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 0xa16bff4d6deddc3e0132926d930c285c5eccbab3d4e458fa0d4d262c7a387de8. 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/fdf20188-e799-446d-b046-a4a08235d57e.json and https://artists.proofprofile.net/proofs/artist/fdf20188-e799-446d-b046-a4a08235d57e.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 0x31fe18932f9b12005cfbc6e22ab5a3ecea6eb7f435b40298f215f424963a9588. 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/INV422200779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c0dfe07a07938125ea38717edf5392f400caf78498dc192744afff9b8bf9ef. 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/ING642301510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a993c59350f0e299d3d90d430d72a763d190b507d324eac9e977b156f29d5ad. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ING642300872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0333801ae2443b563162013d859831252e758aae329dfb90fa92d4e6845575a8. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ING642203271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea1562802a26cd57f0f02cf563e262508bcb142f9f7bdabfe73892b4f346dbf. 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/ING642202193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610adac88c91bb5a1297e07f90ea04c00e3e23898a5f35827ae66b8cdb2d7587. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ING642201115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e0967a53665c8573d9c1d35c79047f49976d766955733aee2c676ad0b762c9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ING642200524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe411a2ebb5ae6b97d8fd624154f08966528184bec406785716bee29addf22cfb. 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/ING642102189.
Raaye Nuv Raaye (From "Bomma Blockbuster")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80c0f7a2eab11ec99274e2d5ea0d95c2a7e520e8634d1c83f5cc60b48973f14. 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/INS182006592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42261e53240c0b90db1844025b790a705e244d51edbcde3656436d3ddfdace86. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ING642203160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33a22d062a4ed54db4a6ea3cf9bdf9dfd736bcbec7c05cc57bc2a5cdfbd8064. 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/ING642203414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd44caa3c366897c2146d0a9cb7aaed7aeb89f4f6d6b280c8adba115fb216de. 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/ING642203497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac8e414b05fdc29d99b742f9716de33f16f6569ec56869931b4e427ecbc8708. 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/ING642203554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15aead4b2baf4a05d2ed1031342424e5f701a44a2ad6779ca9a5bd8595fb7aef. 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/ING642203598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ce7da9689deeecd0fdc6ffaf8886d21c24bb52965d11b72d180f0b62738434. 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/ING642203627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bdae47de0ee7e20b7458e0b1b62172f20fe2febbf772a601b9c36371bc409f. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ING642203706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d9e57f490fe5af810ee40fc64cf019616476cddb8fd7e328391b7dc93e149f. 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/ING642203796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2eef9eb4c6a0f444ab492c0110861cd7e575ee2ed8f6ce763a0f1a5328c9d87. 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/ING642203930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2e33dd30c4b19a011b2b4760a222d1756df5d8e6ab6e2702b9c13f9d54c957. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ING642203982.
Tiranga Lehraaye (Feat. Prateeksha Srivasatava, Muheet Bharti, Aditya Kalway & Hansika Pareek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8fa997620e093db10e8660c75f37dfc3ef5649538d43783432411fe481a223. 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/ING642202554.
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