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 0x46e94eb8150c4bb9da565838633b9f48a8d5180b98d95932b5444e9e174ea6bd. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ebb3ac8-e5ec-46a2-9913-872d94df6cf9.json and https://artists.proofprofile.net/proofs/artist/1ebb3ac8-e5ec-46a2-9913-872d94df6cf9.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 0x733f8c46675551e58ea45dd0d689c0d28e736a4c326064803d7865e4e7a426fd. 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/QZNWT2293287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba818532d7539393a53ae613714a3663407569407c132a7ca44c807d5d1f6cdc. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/QZNWT2293288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dc75ae230dab967842665932d8c9197f0a2833e8c3d4f0d6e01ffce641ef02. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNWT2293289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7717f8622e8ad59e6fac27868a85400a4cbe03515df40f0d0fc3687e1e50b4. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZNWT2293290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd9faa4a48bcb99a3040412c303b194d903075ee12ed2275d129c92cb066122. 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/QZNWT2293291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc298b4334461e6189f5d78a3a21f8236474adca176e1e6a2dd9cc7b69359b4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZNWT2293292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fde75a9e9ef631dadf7b4f8416ca9a522c82d200bb5cc55edb47a5a8183c7c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNWT2293293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6015aab22596919ec6c0cafea79c6a6f8ceb34aa0a7b233c7021eef44c15dc. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZNWT2293294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c0cb45a22c8fd4b6a0abd4e559622bdf90d3fa09bacd1d239420ab3484808e. 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/QZNWT2293295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e15ca5f643c869aad58df6c8ac94d303e6310e2397d8fbbf6cd569b3e22a390. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZNWT2293296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e036b54b78157bfcbbc561f3d8cc706ec2d06846fef402b27b28183063b6c19. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNWT2293297.
Aunque Muera Mañana Sere Eterno En Internet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5bba32d572127b30002c2e1705e14ae26152442838f8a1b4ac81381935c3ff. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHNC2552872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21a45a74bce7436c0b7fc9101c5350a28f3d63dce69e3c6ba7b690d09472497. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZMEN2547060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb070f5789b45f782acc53e638cdc21098fff41c30de11b98f08c4f54b1128d62. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZMEN2547064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa248f526469a9b76cf9931c6c11ab62cab7f246db9bf72ec8042267b45cd08. 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/QZTB82456740.