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 0xc57e314917bdc3dd85c8f06df55f1505e09c8d7bf2d02ae6f1c2e1f1f784367a. 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/bde2d98c-f3c0-40ad-884a-0bd7d2338567.json and https://artists.proofprofile.net/proofs/artist/bde2d98c-f3c0-40ad-884a-0bd7d2338567.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 0x00a6c9ff8e7ce7f45ea7a0245cc4b90eed1497f1359d48c0984adf0f598fb99f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BCVM02200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef1cf5d05162a284cd3302c5bf89370ae564617f49e9a923ad537c23f25fc54. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRCSH1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b86cf824d7f3b910ef84205187180291af7b2c2a96fb3779ed78048a8d5b186. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/BRCSH1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51d2f8d8ebb4d73d64981f7dcd61d5a6960ed19bed8d272ae4deeba9a42a574. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BRCSH1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f7782cbdd6a6ef0bf43069ecec061f5c3433df1c3f5b4e9af1a3752ef348c7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRCSH1700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37d87f75e61db0f525517d8f99106d09c3da88aac73d91a1579c6fb5f839311. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRCSH1700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4cd1c055453b2b272706b8d64ba2ddfb2229e606d6615d7b7e21dcd8c02c71. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BCNGY2100001.
Salmo 127 - Felizes os Que Temem o Senhor e Trilham Seus Caminhos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb3f829692bcbee4789fab6d9b11a182d4d16f59445b4be2fc68122a8b908e6. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/BCNGY2100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc78431a47bdb569adb74462e1bf38f04e0cf798a119210de73416ea5443371. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/BCVM02200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc78431a47bdb569adb74462e1bf38f04e0cf798a119210de73416ea5443371. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/BCVM02200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151015ce3d5a687f524f88d9dc7304ad65da78051fc624cd73d3da40b2377886. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/BX3GP2300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9209b6898991d23b44547e5799766720d1f6d51d7ab1872d1b47dd406850b2. 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/BX3GP2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c6ec13311cb8f14ce13c74c3dcff87fdbb9db976fdd476d6c5daf87a65d491. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BX3GP2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac7c8ccb6a2368e635848fbffd307902cc919fcbecfc4f4f1db97f470a0ab34. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BX3GP2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e38b5c4e00b83ef464d9b89c5775054708553051a6bf1eb45853642ac951e4a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BX3GP2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025bb5da8b608a4f7e96eecc09819e4bd209d5a13524d54c6c71a7b26c8773b6. 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/BX3GP2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0ecf04894024dd31cfcd3c73bac9c2fefd91b0b2113a1478bac36799f73aae. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/BX3GP2500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabfe57544037bbd89060adfa071b82c40d00e4a03302492e78f5b4c8eece8c9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BX3GP2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db87aee4ba7534b6e34e7348098cdf766a8e6866804af2d6e08616f8ad40537. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BX3GP2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2eac02c80e6b31ed65916885aec010b9b088a737a2096b043527d545f9664d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BX3GP2500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ad2ab208e7d7031d4160d2bac79309bce457925b54b3be2a7d8058adf00af3. 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/QZNJX2115577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d566d5c6cf8e34146bf9045df448de89496a0ec571b56f9d4fbcd94e13f66d. 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/BXKXM2000013.