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 0x88e6b26267d18c5782e47ee3f9e4db322537e04464618f5ef56d42b1aa51a8bf. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4de12c50-7d39-45e5-93bc-94b90a4c8cde.json and https://artists.proofprofile.net/proofs/artist/4de12c50-7d39-45e5-93bc-94b90a4c8cde.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783ffd113a2be707ec66a6e238243d94cef982b552ddd63a31dc3663c9428bdd. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZNJW2262946.
(Finn o Humano Precisava de um Pouco de Paz na Terra dos Pinguins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b16620a2789598338838ef2274d01844b6f91ea78f9b93909fedcbbf4b396be. 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/QZNJW2262949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc300921dd35d8a6e5d0f7639c519a791de1896b750e8642352b0b660a41988b1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNJW2262950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e72b7dd319c3b0295edd0272e86e674cc4739828fb25ebf9bf7e30ce38221d. 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/QZNJW2262947.
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
we were wrecks before we crashed into each other
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfe258ac4f9a0e9dd50d18aee17f50c844ffcd0f47ae1689ea302ffa5feada8. 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/SE6HN2441940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454a978ed1e984807320f310e8b5c561140975b9fe67471cf384b39b52cd38ff. 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/QZTVM2144139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0428ab2f018c086bc08160667dd43a5bad600cb9ab5eb37fe1632c8632387f85. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZTVM2144137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0249d22cad31f1bcdd31b3f1aa7131a97ca4c0fd949329d23db273f3d5d79888. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZTVM2144140.
Tonight I Looked at the Stars and Saw Nothing but You
I Don't Expect You to Forgive Me but I Would Be Really Happy If You Do
o dia em que a maré carregou nossos corpos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad6d6c3c5417c7ba2fe45b3a10c08050e97727ad5aaf8f3bead2a95b308011d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SE6HN2380485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8331cdc54b9833bc500c695e50c5e14bcb019521f708d95b89ea699b439449. 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/SE6HN2380486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e51e299b295dc7e39f79090a064fec7c2355d9fc0c7b7bfeab574dea2b1acb. 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/SE6HN2380487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc72e8fb6d57fc340ad855f97538da9187f791b7c7f145ec2f30833a8d2e0f17. 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/SE6HN2380488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8412f528579f01ce761c0b40007fb491d1bda6643f681484483f2ad36b2645. 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/SE6HN2380489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0753c09074941351f8422f17ad9e98a1dbd6fae03ad3c1b31e5044b45086f4fd. 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/SE6HN2380490.
eu escrevo um poema sobre as linhas no meu braço.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a2997145b087167643003f96aabde5b86cc9d20bf06662e9f9f10c9fe6b251. 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/SE6HN2380491.