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 0x0e3d621cb7092ff370a2ab5484b278608d8d4b232ac91796f39262c4a7ce4123. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/566f22a7-ae03-4559-8ff0-94a8fa63d9b4.json and https://artists.proofprofile.net/proofs/artist/566f22a7-ae03-4559-8ff0-94a8fa63d9b4.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 0x35c8b73593b3da93583a7491cae5bef3bdbd6afd3ae5267dc4a20de2f906c5c5. 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/UYB282374006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014243ad1a8257f6feb5f09058c706b546b8ece679c7e0f62fbc434927926fae. 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/QM4TX2147100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9731488b069c20d77f3f0eec51de25eccc8cea5e1fdb9072203775efe9a27b46. 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/ESA011800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890afa727626068af31841bca9934b38d91509ce603f5cf0bcb165ef7e2fa42f. 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/ESA011800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4521c3298de674be1d7644599829e2da960a166cbc551f1b6ff25d960cb14ae3. 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/QMDA72168826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e506b367fd1b5cf763db29c45aa489ba322fd47b6243d812eabd7052e050a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMDA72168828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4611feb187f7d5c5a55ed171e150383577f31eb7cecbf9a26480c53b536a0c5. 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/QMDA72168829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c895bbe7919d65b6ac13362855a09a3849497aa9029a1eb0b0713aca78c1195. 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/QMDA72168831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67841e431b46460a34b8f7886109df3a525679f7698398952da08c8fab944a59. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMDA72168832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d03e8802d647689255d3f8a8aea0bf0227aa10f95d1ce28e57f56f35eeab19c. 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/QMDA72168833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7228edf3b281e8e1dd6f3284f0724f5154d412731409bfd2526266ea3be2671. 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/QMDA72168835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5e4ffa9c170911988f6b6dfaacbbd15a1ee5bcb25f8b7b66ad3660abb72cd5. 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/QMBZ92045571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1808a49afe548a2e184a15c978d00f0c8e7a6f9f8125b6886776997adf1c4658. 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/QMBZ92045580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25515517f25b7d8238462710596a8eecfa138bf05da7b5ab6584fd4613a3b764. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6P42343920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555afe13d81a8a995391d351f268118711d2778739fda823481d63d4a913d068. 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/ESA011719081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67322ca9bba1f9cdb1c9cf99521bad293421876c7027099215a6210e2bdc77ce. 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/ESA011800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010d3a05c92af882a3ef0d450cc6d35a9f4ac2a8e9a4faae7e7fd91506e54c64. 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/ESA011800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776fef23cb24b84fc43fd8b4d74e604259722554cc080a3a70665135030ceffd. 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/ESA011800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31fa3844bff901a67378f5ce1ceb7456953b0f982765226358854601d362235. 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/ESA011800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ce02d3ce8f109390f07b9f1a7c2ac454fa21d5d9b42011d6b22406a69a578c. 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/ESA011800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4cc1a36a8ed949ee7d097b4aae060d91ca61572e26a051c3b5f35dedf16439. 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/ESA011719149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d21f5b1347ad7cd0930075dde806b1a688e6da5770c1dc19a3767dbb0c463e7. 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/ESA011719150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72099d115e292d1316f80dd900629bccbbeb6ec53c77b6cae261b1534611e3f0. 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/ESA011719151.
Entiéndeme (Muerto de Día, Vivo de Noche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9934f8a44f99d9c07de48726068e4b6fe94807a150bf6bbdde828f98d1fb6472. 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/ESA011719152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f756edba973417083e246bf02f053f528c49ebb4db33c7f68ff2585f18ea65c. 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/ESA011719158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d6fe79b73fe0a5d9824993cfa864ec15b8cb4e467aabedf122ec7ad56bd000. 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/ESA011719160.
While U Work; I Make Music (Remixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f607b3fcd2a4cf9cd46d731469ccedff8c60f4bb351bf950fd221c3b6fa392. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA011718559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625658764696cba3ca97f36b0041fbd9ef07b91241a633733f146621a2dad57c. 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/QMFME2177295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c59b65db832d771a88c39eba998ffff88f0252742e01f526e27a83c7cdeaf30. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMBZ92083866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1300bd1da9303bdea892ae0aba607cf007a768a6f2ecc85f7086b207aea38c5d. 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/QM7282007012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eb69188817bcf64c920908b2daf2384caf4b1c306de2dd0d685bc81111722f. 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/ES5702000786.