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 0x48a5c2fd8f544b538f50ff5b487fdd0ca4f6e726c523d1013ba12a59860ba410. 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/1a0b6fc7-3b5d-46de-bb28-81388f1b8d94.json and https://artists.proofprofile.net/proofs/artist/1a0b6fc7-3b5d-46de-bb28-81388f1b8d94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fiz Isso e Senti Vontade de Matar Alguém
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 0xa1439867cd2ac8e6df8c2130c2efd06c8b5728df46f1e24714a213e005ea2a29. 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/BCVFR2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0e0d9b4e8a7d566a6e605f00492e747522bfecbdf52cca700254fb6cab8466. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BCVFR2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c174a1ac9b36ef5d2eed2158ae962f7cb28be6dd53a6002b01f0ec432c43ca. 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/BCVFR2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8765e02ebae44abcc1632d013abffd6dadc6b6afb872edcab675d78cb8c58c74. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/BCVFR2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8cb4b72f0437031d21f18c7492bc186f930b59542745f51d6e7ed288606993. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BCVFR2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133fd78061f98512ba016ca3db7fc54ce1e02166591dfd12060622729819957a. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/BCVFR2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b168171a59a21a7736dd7303072b2f5749c58a255dff28c6c97f7dcacf2497. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCVFR2100007.
E Antes do Sol Se por Eu Vou Te Achar Onde Estiver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74aa7631fa2375cb180976cc011112c1cc8c0b6aa7b59c118f67b490ebfe48c2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/BCVFR2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77666cf6f23fbbc660ccde35701eff952e06bbfc00ebef7308342b568044c8ad. 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/BCVFR2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aee8458b1c1e674346d0b5f7c0384cbe4d10ce378a70f2c6bc0fd827dc7e3e. 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/BCVFR2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9623527b3edaff04bd57d641ecda38fc10565660dd6ff240c79bfe47e0b51b80. 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/BCVFR2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9b1338004735ae167dc243bb8e4e285199233bf1c94331be9ee3f35fa6c6a9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCVFR2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009cac29829bd37fa64e874e6ca4a61ffa425176f46350dc787628458cd3599. 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/BCVFR2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1262aceca68fc979a0df55b794450e551f3503dcb2383d3de8cb37d75682410. 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/BCVFR2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae07753753be896a8838bd4d2657f44b1f18a0cce3eb4e3f7103ab051b46ff7d. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/BCVFR2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4f6d195ea04c7d47b719de68759ef7c6c7e242ff1c438a2a9b6b6beb5b8b86. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/BCVFR2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0680c65bdfcb869a394a096354dfcdd963fa627c492cdb6b4bd3073853aa3e47. 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/BCVFR2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bf95194705b0e2dc5d4e9081c33d330ebb41cca76448896adb3a1e5ac94a06. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZMZ92396503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d66bb58a023082fc3e8fa586593831a69f4b01025d07adbd018ca69013a53f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BCVFR2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a16d88eaa9b935d548204f6e6320950f687eb839443c916be7709b2b9ac5dc. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/BCVFR2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6082319a82325a2f6caf59992d7c6102b35d01523669959cc79b77900ccc546d. 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/BCVFR2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e94280d48d72197a5b76096ba60acb1c6b136bde11c3cf4c8d61896abcf41d7. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/BCVFR2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb314bd36ac22e924e65a04ceed4acdb3d3d13764e6b3f265d6b84768f4f46e62. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/BCVFR2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5a0891b9957b2c90255659879d3d24d4c7c5b9935b0dd02fd9a575cbac0c88. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/BCVFR2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbf33430844dcd320b76f1470184c7daa52a87c8521a7e2b9990cb721ccc6fd. 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/BCVFR2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564d30cc778cd182bfd374be379e7656191ff554829aa96fec4b20dcc8d7824d. 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/BCVFR2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8214efeeb1cd6b5e8b12ea740ac561423968aeb53b077e248b987ae37d0652d3. 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/BCVFR2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda183bc803d02d25974ff3974818aed1a84cc036e2003eac48473a3a6fe3ba57. 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/BCVFR2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d09cf997d5bd6fa7349bda29530aefe6690a812413d8679ffa20ded6af1e712. 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/BCVFR2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dc13810f99daa81cba1023a8104c10cefcb36729616181326bee333d1a472b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BCVFR2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71855a5d2f882dcbd5e0406bfe22d33b34dac4d56c00bc0b41f57dc6d1d1d428. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/BCVFR2500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8a4a3750397de6918d26e2729d035a290d8c9f6a48ff41e4ad69cc1d676e65. 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/QZ5AB1847997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a919e7a9595a99e5c5eee8a9710af5cfb29f6e7eacb837dfc6952cdf0ec4da. 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/QZTVM2218769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4f95b888d170539375710542b9f7395346b2e7a88f0e6ba06f4b2d3cb572ed. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/BCGHY2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722fb30da757dc6074bc029268304aa2694a907d7612c5581fd7a2f10c635c5b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUMEV2586438.