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 0xcb9dcdb06764900aba1e05caa550931a6a4312411a7096bcfc6493a897885507. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32e8ffa2-bad6-49f7-a2b8-370672736af6.json and https://artists.proofprofile.net/proofs/artist/32e8ffa2-bad6-49f7-a2b8-370672736af6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
25 Sucessos: Os Reis do Chamamé (Homenagem a Zé Correia)
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 0x370228db937559e26ba0af8d89dd1329f3fbc36f1f0b2ef98e5e3a1c447d416d. 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/BRBGC0600377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83daec69858e85d13fe8df91af6408f2010584ebe01f916d9153bfbebc24ef8. 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/BRBGC0600385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd534479813f9a3b4c4145ea1be8959c0a8be7f427bd39ede2e3f0e2c34c6481. 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/BRBGC0600505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77afa52f71921b9844d9de0d4eb6eaecbe095f11086a340e3c048ed1c136ba34. 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/BRBGC0600515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59513a9646cff1f968fe3cde91b2c70efb5ee08acce1b59a1e523de499989d56. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRBGC0600378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ab5344724465b0bb321a8f7a74799455464b80c0c9596d688ba86a5cad830b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRBGC0600511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcade9b1af284e88f51a64e2ac025b8e0ac27a602176f978cb51caca126e34bbd. 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/BRBGC0700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b19b2b1236b4c879efc2e7503b8e859ce6b2d9e1e2f569e1452a0d406787cc7. 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/BRBGC0700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525a92e39debf77266d96cafa2c7b180eed2fe08f48520c67200a043a5b1d3d8. 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/BRBGC0600507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b5baedb1d701e0ae45a37c4dd5851447821914b3fcfb19f79d10c92fd6549a. 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/BRBGC0600519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b23f8db5d9bccc310ed191132548051ace459d1e1d2187a27db452610780c6. 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/BRBGC0600513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4589c11350c470fbb5b515c735390301f2359ad19fd5a8c9330530d4f3011f14. 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/BRBGC0700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7b51af9b925272625a3a70a8d595d9e3d8838edb770ed2f7ad35cbb723cb6f. 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/BRBGC0600509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5789a2304731caf95a8895e1aaf6cdeabd84f5a840523d1028715df6e14b4424. 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/BRBGC0600365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd025bbc1c6d10b701cecc95164c1f0a4a2510580ff5fc0da95226ab24db54b. 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/BRBGC0700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15953dfe56383b8e0f3cca48cc3b93ba7a636994e1f167e7e08152b3c5ace549. 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/BRBGC0700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c81d2568fb582c4af472efac27b8906c31e171a1fd0d450549292530f21de6b. 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/FR6V82465724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5446db926b6c67e9405a8198c62de1aeb256e2e71d8e4976336182338fa6c8cc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRBGC0700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ff9bfcc5c3f5a3feaa298ad19eaddbe81844ab61b1fce67695586e902b48cb. 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/BRBGC0600523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23123c8f4c4680be953d4fad223200b8c461eb366d1e9c8a6c0c0bd2341b6255. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRBGC0700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9506fb3d4325b1b730fc1d926dcbb2b9447e541cbb32227cfce3437e7d8c3a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRBGC0600517.
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 0x830dcfe9136000c1e7ed7c1f17292cd2568df2d8f749ea683253442c9d11d5ec. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/BRBGC0700032.