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 0x5fe817927462dbbcf4b05ea42b5e83efdc7cbafceb2772d709dc2ed91ac52659. 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/817bf6c2-651f-4b25-a316-615a4bcd40bd.json and https://artists.proofprofile.net/proofs/artist/817bf6c2-651f-4b25-a316-615a4bcd40bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bruna Black no Estúdio Showlivre (Ao Vivo)
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 0x242da626a25513687adac4375aaf33d533272b7b972caa0e5249c088037a05ed. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:16Z), 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/QMFMG2305501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0576b2a012c4dbb613d3ad567ce440b57bc548f5997bb1c501865dac404d269f. 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/BKO422300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7151a8e477dd0ad9022fef5d510d97f071299af583c8964c0428c06934152286. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d04ae5cd3cb626905ff5e02bfd6189049080fc07673b1ce261b82b7808dee4. 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/BXDFR2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13561b85d922e6b49c4840498d0b9ce9a46dab0dccf36515c3549b18bf636b94. 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/BXDFR2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb389d27ef5be20a03ee291e539b7bff5f94c12a389e03085f3fd646fc59c4235. 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/BCG1D2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a331d60b8787fe39e62a51218bcbf0d1b9081c0dce2f537a026ddc56645a54. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccccfe7126683e0e858cc8b687f2151520af8d924963d3b7622023ba437595f. 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/BX0152100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465cb57d3eb050023e21da89e7925b5c27c63cfdaf1501e359543b93aa3261f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290feba558eac896f22a41be7ba49050aa62891d84df131ea3e7b3f3b0f8f9e4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aeb6d5ae4e6d75c0b109149f6bc1663d7b954a3e289421ba19d78efb7fe6b9a. 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/BRUM72003482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b96b92d7e508407250fc2b64352a6c5289013937631ef9e9dbead76805c378. 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/BXDFR1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf432c04614dedb27ab0a8473c55860b9355870bfaa18d1029d6d8dcda593aa0. 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/BX0151900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1535f40fe42fc4479f2f57e6db013939a1c2c5375d4b0192cb62d874aa7690. 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/BX0151900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b09fd3317a80758fb3440cbbff81a84b18c60f1088d18cdee1544fefe58130. 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/BX0151800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc285054b350ef77ccde2b1cbd9ac2cbd1b34da4f3ca58add9331aeb16b9609. 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/BRKAK2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d4397c33c7cc0cc97427642b4d9fb738700abcd5248f348f077dad504cbfb. 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/BRRGE2401158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e9db115680a387a1d8655b0d5a9a2e62e7de67445869c540ea1588406f455d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d04ae5cd3cb626905ff5e02bfd6189049080fc07673b1ce261b82b7808dee4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13561b85d922e6b49c4840498d0b9ce9a46dab0dccf36515c3549b18bf636b94. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f1b3447a12dd368434ebcd36f7c2d195d30daec4af480743ee782472873251. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb2ae9d36b91938f7a90b7089dda3de664fc33af65e182fa5d91f0e2952e08c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257a335ba0f1e2e9320a3396317d24a0ba264bde5c64cbe8542011c2f241b1a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51f91c993cc537638c2166da9948987dd9a18874cf4230f389fe752866033ee. 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/BXDFR1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b96b92d7e508407250fc2b64352a6c5289013937631ef9e9dbead76805c378. 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/BXDFR1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e748e7be9229b4a6886ff0ff31547a4cdfb2341b37d4f00118bd97ab6cce9d4. 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/BXDFR1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fb57d109090743cc0d7a9e1aed17dab34598193529bc4e5315a6f53ed13c9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXDFR2000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0f1684ca028f74170f38ae30ca0ac2159e5f43d6443f72af340f380a9a8bb1. 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/BRPOU2400032.
O Sobrado de Mamãe é Debaixo D'água (Trecho da poesia Osun Hum Hum Hum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d091eb896f8490a6e348052cc4a57885207d4e6b7a6cb1896bb06ef40f3ba0. 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/BRPOU2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d1039ea8d1c578f1c067fc0b413a4707c0d7b45b92710362f3fbc2c834f5f2. 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/BRPOU2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aae801d3fca045d0a5f7c39dc77a666fbbe8e1598bc4edb6926c406130a9ff4. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BRPOU2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fd2e7413b53b49c8508f2a2b6ee29d6801986db93ce7d63a52888ced9bcfa3. 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/BRPOU2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3820b12192144713086127d3e54098751857c1f4c78f098e123ce347ce4b6d5. 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/BRPOU2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2ec3496084a5b6ba94b099a17e1e7ca2818d4b9b23f94f6d0d3c15819ee5e5. 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/BRJJY2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92418e4ddb8677ad0abbd2a681132d1ae12a712e2e555b1ecaf66bbcd0b09f3d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BX0152000013.
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