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 0x6cf40944ce7062df0123b5150f83fd612030fe31f6f2fb4904095e2f7c3f3796. 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/88821c99-f66e-4a12-8b45-5b2a2b0d315c.json and https://artists.proofprofile.net/proofs/artist/88821c99-f66e-4a12-8b45-5b2a2b0d315c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SEQUENCIA DE BOTADA & TACO LA DENTRO E NAO TIRO DE DENTRO
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 0xe4c03b5d1250e5df42fc791fe176aca052d700dcdd4307d82a634b07a1ceedbf. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZNWV2176765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995dada9c0ee9593ad68c7cf3a2b3bef1bcfc8f3649b7c2b903d40c942914355. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWV2189554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4dbb2359ac9b723cd2b417b93d5a9d4857153983625fae5eae9c7437ee2e8a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZES82272367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bed8151a9c40d647a54ed13803c39d24f17c50b052b6d6447b5bd1098306221. 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/BCHFD2200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ea5b035d74ce9078e620a22a8b87bcf7a4723e8297b0ebd2924128af6c68b2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTPX2208937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a65105a219a48c0a32b5235231c60a4d6a6cf3f888d34039ac9969a9c7e5e4. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZNWS2306678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e471dfdb90d8c9cadd6570d23db3cfb82d337bfbb47aa9b40624458b0cdf0c. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZTBA2364983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f1b145838b0ce55dc0cd50c7d06f582c26fc525e1b5ddd11ac2270a4e794b. 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/QZGLS2463459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a7751e4d6ad12929bc97058782a25a08c23f0993ecd155b2e3077ab41b8c04. 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/BKJH72400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bea4ad1c687ef817b34c8594a676e4da94a4b7dffdf1d17fa47b564fa40723. 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/BKJH72400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9998efc60a9bf01d1de1f3302eb852a975a3c558e29510a6c85708bc04b783. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/BKJH72400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde3a5104b7cb0344064de8652b6dc344c656627f1ac909bd4009f5b983285b6. 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/BKJH72400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c80cb2f1cf2d5d0383972cda56c1db917a628ee6b3ad2223b0fccf66b1bd642. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/BKJH72400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e944a385bc8549ca8d6781175f212c0bbede7661441295d90b76095e96d2b3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BKJH72400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647aabbd66c2c4cf94943955f20d14972c2e2ab5cc9d81a4ecd850dfa1e57d32. 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/BKJH72400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe644e7176d27f92fb15dec2df00ef77fd27fb36c44325646e8400071a916a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BKJH72500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb670ee9ae4f2ae64a4c4c9982a59b0130257a5d45f103fd7b90a21dc6306fd8a. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/BKJH72500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d5ff5c302036a4074f3608e265461aaf330ab6daf9c810e2049c56d97edb8a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/BKJH72400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a055e1ffcd617ba9a71618d1e5a5a605f39df849726c714f244e978f1922971. 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/BKJH72500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9407a8b0b8c2b834db3c60c414c1b9f1361658e2c76e779f7897ffa94b4bd2ae. 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/BKJH72500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb909271e99146409f4dc8d62ba29e6ce9f941c27b82708a2a8353758564031ae. 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/BKJH72500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4e985b9c1054eb06384a3c7a520662e0640a7c87af0eaa9ced6b4a91e1e206. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BKJH72500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8caa52855de4e19136156e401d3c88fe0e1facfb919f6fe18fc6eb0f04c82d8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BKJH72500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397495d644d2060c48557a1a78d50fa5736e050b302d09f93631a4a6afbd4889. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZNJY2452549.