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 0xb868c6f19346bc560fcf7977963a915d3f7a3a72bbaf51a84bc372c81e352721. 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/d907a186-bd67-43b3-97d9-79931ead400f.json and https://artists.proofprofile.net/proofs/artist/d907a186-bd67-43b3-97d9-79931ead400f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Agnus Dei 1998 (Tudo Posso Naquele Que Me Fortalece)
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 0x87921d9e20c9809e8f653ede4525253fc3faf5dee62e43001eddd5957701dc28. 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/BRCMP9800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd25aaf0f4de6fedc8a51114ea7747d87fad45026eafa5955c7702bf834d808. 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/BRCMP0000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8ca201a4df9d06e6beba896b56c3bd99500da7f0be611435fe9f160fcebe1f. 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/BRCMP0000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471cda19e9bb2e53144a6b1880dd23d0845ec9df42ed10c19bbcc99a58ea048d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:01:50Z), 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/BRCMP0300538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b755d2a5fb77f26ea7970b05af8820df58e7c30719fd630f92348019d03838. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BRCMP0300539.
Toquem as Trombetas: É o Senhor Quem Chega
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8390b549b13a1f6e2bf47f829a434b7432a5f9bfb47d0c2463a0f906b5e2180. 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/BRCMP0300541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beba9ed5983811a366dc94863810a96f7e1fbf7bf3172a55b68d725340b46b1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRCMP0300543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b63a344cf7bac7c808faa1fefb5e8b34222cd4b20802e4631e79022e3a4ae2. 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/BRCMP0300544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed7f571a6ad8943181cb517d4e5b0ed95ad359fa5671d7a4df6c67f3d4cf0e6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRCMP0300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089cdff52644c2c90ce10fc670a4358ea010382ac59fdbc55b14ca5b0d62c293. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRCMP0300546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331c52507703561a9b1ac20ba44621fdf7a7f5b2ee90a1a2a8adb112a7a67a32. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRCMP0300550.
Jesus Cristo Está Passando por Aqui / O Nome de Jesus É Doce / O Amor de Deus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e40da6adb2fd0a3f1c0f0c503ef07cf35e02bb86839c0cdf5e023a4a08821e8. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/BRCMP0400296.
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 0xe9e4c208d2154d6684f8afb4bc9741ba9928ce41c2eccf5d04e1fbb6a7ea6f3f. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/BRCMP0300547.