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 0x12ac27f593fc3b5c7a53bbb0cc3c27261185432fa36ac2be827d45e15b6c1178. 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/5faf5f03-06d6-42b3-8230-625d833e9ca3.json and https://artists.proofprofile.net/proofs/artist/5faf5f03-06d6-42b3-8230-625d833e9ca3.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 0xc88f79e6ca959b3df1f36ffa128b49e9bc1cdda3e6318bf33c30701c4a958c90. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BRYLP2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaebac623faffed7ed956bcb669d1957262b8268f07a6a824172e0f91f8f96bd. 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/BRYLP2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32567765c131049280b31ad27646a536c6881466d039ec12d1e2ef24e59d362a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRYLP2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ac1d0ed79b7f5aaa69354a6e680fc9eef2e402c6293b9fcbe1c53c535699cc. 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/BRYLP2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a6b433e0b96ae415ed2a42798604ccae11126d1c4de1ca49095f91875f15a8. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/BRYLP2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3c3d8e5d7038a78f0c64694e84de1216811e611443a73983076668dede1600. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRYLP2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1419fded8f947f48875f7ec296869e1d898f6e300521c6264b73eb7fd54ab48d. 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/BRYLP2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284dd68c5bc2c61a1658ab59572450663da30a9b9d0828cb5409aa92a16452b7. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BRYLP2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee33f4e61a1da5919bbdd56d0b9b21c22f78ebae9ae4b2f5fca389a00da591da. 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/BRYLP2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacee63be30dbe77e780a4ba89dccf489f66125b053c912f162e85539a511e0a5. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/BRYLP2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b86785aa27aec6107f29cfdaf728541294ebcc5cadb7832c78b516421470a34. 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/BRYLP2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef2f752942c8ff6f3b1698deb393e8b06ea561371eac0d89f061b18937163f0. 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/BRYLP2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7af3297a671be3d4f6ba4fe5919b07956a2ee6cf2fb36b01ba3faff9a86aca. 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/BRYLP2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfba5b9f472db078ab0bb40b0a6d275ac622cf4fee2f98c091fe1b536d87df5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRYLP2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef76346824489591fb7b2a9e76ceac12c97f1dcff7ff4a80967e90faac36d47b. 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/BRYLP2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd449229b81ccac5dc0199d84a56d8993e35fe196d3db36d62081c2679fc663ad. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/BRYLP2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f883856554ae93c8082b3f18cd9807803a720a86853d76c3f6d33b66176935. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/BRYLP2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3427b42c565b537c6f61d6c3f9e71fff51ed9f9f28f9cc37500e1da16b4f2974. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BRYLP2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03958f3a3532d4f89fad62ac052936ac3975936bd0af3b75a41f9b7831499047. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/BRYLP2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d74124c51232ee1b1e032fbfc5f7fb12b84e294d49a187188a680ed2779a66. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJZ2563961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc911f09954c5520e1eca115a95b05a069327dd39a94447188b6ea7099493ab6. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNJZ2563962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c1428fafad0ff04bcf4d3022e98c3702c7b1392d8ce4dccc71bbd2235d998e. 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/QZNJZ2563963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591eec63ead8f1f29ea9356a0b0bdbf68a4e784de141c6bf86b99c0f1eac329e. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZNJZ2563964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709fa5ec72e2cae0de73e8564d0e837d185b53428df7b771aae9f53581cbf633. 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/BRUM71301447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f4ebb9ef6f4b1351ee87c0bb1e24fa628df99b40411caf4b70c796c9e9116e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZNJV2159771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1229beaef2a57b0581249f7412cb79a6fbf30b8c44dcf2b7c2988b50f4eb4ef8. 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/QZMZ92366484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bbb1b0f74f53e6bb74e3a33e3e8355f569f91b5af6f1c8684d3dd8c0096653. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZGLM2347893.
Canto em Movimento: Homenagem aos 100 Anos da Dama do Samba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4527f2b7f9ffa59982f40f2e0f996e94819975fe5dc0df678cd1c57e9500f757. 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/BKPTD2200019.