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 0x7608b386976f81052ba26c6ef5577e4a532b99c2c793aa5c63f77d11a2c83210. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d43a20dd-c47f-401c-a4f4-cb0b10ea6673.json and https://artists.proofprofile.net/proofs/artist/d43a20dd-c47f-401c-a4f4-cb0b10ea6673.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 0x2ce90f6061a5fd3a941fd4d68b099de22529128218317613b8d27e163a439cf8. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/QZNWY2342062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093eea1d452308cda209dde18e721f48f5868a08dc843929eed24504b20cbb1d. 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/QZNWY2342063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f23db868eff727a3bd0413fc8aa8970f3112846ea37098de05f0371eaf55e3. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/QZNWY2342064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae99cdbc7cd51658001e1586cdded30766f8a360db09d5ea60d86f0a9e08a1c. 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/QZNWY2342065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0816cb10ffc313f1110500ffe34485de7beaf2e9ce7437f05acd97b842f7f9. 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/QZNWY2342066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833761ac118c00cd4f25c45641ebcdf7a0d7545b56cec5d5f4fbb33b91825e6d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZNWY2342067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3aba4002d72a300088356d4b649957ca9574c431fcdc28a7aeca0360c611d3b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZNWY2342069.
Each teardrop is a body trapped in its orbit.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a6f76cbb7b334e4ba681dae797ff10f67f31626ace7338de2ca82ef202fbc6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNWY2342070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b51db45e6a452ffc033083db621b0ea25f548b6226a9133b78b8aedcd7a1a3. 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/QZES92301416.
un dia morirás y le darás gracias a Dios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc7e19322fa83a6dea3cb86babb2c7a7d0739930729f8ea5a16a83f0423e3b1. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZES92301417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1d3471ede49fee712eedc2778b3011a00c42f413540164f7d0bfae77b3f2dc. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZES92301418.
Cada movimiento debe ser calculado. Mi existencia es una actuación, las personas son espejos,
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3b63151da36a2fe81555349b15f451afa04a6208c657ee1938d08f375fca53. 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/QZES92301419.
y mis palmas sangran por aplaudir mi propia obra.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739e44885ea5897df4161c52b33d3fc2cb1d9efd1fcbea910b784693e78aa906. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZES92301420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d44dba74e2dba16cb2123258100ae4fc5c15b7ec47059e4304004da3c3bbfc. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZES92301421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7114c5ab160821f4ac9b7059ed982d4da83ade137f2df00e63776ef1ca955. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZES92301422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e9bcbde4a36495d0284366e5c6387cb8bcfdb1c1236bd3562001b0aa3fe897. 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/QZES92301423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4e5d0bc54c735167eefa2407044522836c27b6e2161f626720a542b0298f6c. 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/QZZ792497177.
Espero una canción, que me quiero sentir entendido,
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e84ce673b1b904b629786abc021687e03ae615c028b6bbaf22ee7bf492cfc1. 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/QZZ792497178.
y espero un extraño, que quiero ser ignorado.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7903b300f66fa66f24456cb3847a1e4ef395951362fb7f0e0991202bb84c36fd. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZZ792497179.
Seré tan fácil de atrapar, que no querrás hacerlo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763872b75986e4069adfbc02500d7a69a74682ad0f70e285e2930402808c80eb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZZ792497180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacdd92c718578bf79987a86add1dff770b9172be4ad87b328628b5334fb08b2. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/QZZ792497181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddbed5c7db3cedb39d824030dc4b649c48001cfdca3916afbd1c5959850e51a. 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/QZZ792497182.