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 0xf44238efaa2be0a76be8a6ae2257b69dd967961ef165d012084aace1f9c9984d. 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/3e8d46e1-2a0e-4ee6-81d7-b72e09e2c141.json and https://artists.proofprofile.net/proofs/artist/3e8d46e1-2a0e-4ee6-81d7-b72e09e2c141.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 0xb15b2b38a3760b6c79c6a5628f2dca82b9cb910ee23d06bb1b3db647904d92a0. 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/QM4TX2092174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037570734ac0145a39e0224f08e0bc85a278a942ba6c25a9e7a51a5bc1457d17. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM7281833508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b6664ea1bc089124b2274d5b18890f883641b74dbcece7d05d53a86355d6ba. 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/QZ7R42052159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04638bcb6833115f50b18979d967b08e716e0926dc50f54b24c556973298fc5a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZ7R42052766.
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 0xfa388398b0ce762fd414dce0aeedcb9654edb814b598e4b6c81f7f5cbc1e0418. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHZ32277013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254d18a2ba0bc2b70dde8bcba352bc573c5b5b5e9b03b93f317eb79b14ece8df. 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/QZ7R42152231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b310477c26a4c5f219ec1e9af3700566f25fe72284bdcb5f86cf2a16f349644. 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/QZ7R42150995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6952448e3259072218d3fe726a139eec88d3b74a7bb641cd98ab86b2196d5771. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZDA72066216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e3734dda3523942727aaae03f6b7907809cdbe9fd4dbed44f94e02e157f7c9. 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/QM7281987191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9679f950b7d525fb597ec8fe7e43b89a9db41e01f19479fe526cf93db822cf42. 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/QM7281948420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00345b5620aab211a9c0069d312d19c39d8427723912d3a91b86024fc30da70d. 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/QM7281941823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a1d8134d2e319a10f8c72eb8e6e3d83fcad9f206cc9278248f87ca9a701cfe. 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/GBWUL1815288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a70d0c18703b91e299fb96e807e7f7f80e8e5e838272ab52f9f5b0bad6c5eb7. 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/GBWUL1800883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d05fa437f75e5eca9237071c139e19cabf7b79eb4578e11a2bb164f8edfbb1c. 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/USA2P1891049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd88e333974182e9702e29b3da42438b181161f53c89a47a170e8c7f0915274. 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/QM6MZ2000724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b45ce866eb0e5cad55418c4532b3bebb7af669b8e9f10704845380b907bd554. 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/USLZJ1824600.
Sinfonico Presenta: Me Compré un Full (Las Ovejas Negras Remix)
Sinfonico Presenta: Me Compré un Full - Las Ovejas Negras Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84606738733396386a4e93943d786e2d53221533d7f4a532398c22ba9900ef89. 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/QZ7R41852229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aad06a283ef7efddc07cbc7d2090b5ee4b7a3b855388c94d520ecf4e29edd2. 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/QZ5FN1802887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416a8c947fa8ffc61cc60064e252ad32ce517321e569ea0d39f2f6bfbc488279. 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/AUMEV2403738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3f9cdd41660a24a48e1c945cb0d9ed3b838ef58c19e98cf12ea076df25b9e4. 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/TCAGZ2343389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578022eebae4188b9965c45055ac8fe403a63286c733ffe074980ced50de1c1e. 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/TCAGO2206020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72b3b59e0467b3fa13f397fcdc55d0ff57a72672af38f22e68468cd89857a20. 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/TCAGO2205971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca25bb4c2a0550fce9abbdcbb14cd6d7bc43436a351013a0cca545f65c9f2b7. 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/TCAGO2205918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d87dff2a48382ebed057d59b6904faaea815c05d345d468d1785cea52e2d86. 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/TCAGO2205877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de82d3e67cc82356c706fa57613068f3077a3a5419cf75a7ca7eba290979e40. 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/TCAGO2205840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c1268bac19de462a2403637a2dce4cb17a47bdc16659b7c1548638c7d326e0. 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/TCAGO2205633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b01636f4a97130b4c485be394bf34617e70075bf5cccbaa7cd56bbd487f3b44. 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/TCAGN2281031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2707d2764b58b6b4bec9cbe4893756540ba8ba9f857cc6a536df446c2bb4abad. 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/TCAGN2280782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02906615524d92c6521207792ef28e23eb7c55952d6c340c6af6ab78caa0c2c. 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/TCAGQ2235217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee1c1c1f7afdfc6c4df4181666be198377fa95f32e548137858c55ab9db15a2. 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/TCAGQ2235171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e8e5883d72f3a06de94ed89a90f82aeb883a54e27d8b78739f82084daa8cc4. 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/TCAGQ2235037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4b117ba3ea20cbf24535c575845d73585ea81ecfb931c03a73f1c2dd362818. 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/TCAGQ2234987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b1e2833cf5f351ef7a425034941a643e81ec5ba001b1fb99ac255100a61d3c. 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/TCAGQ2234950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7f97a2e14d516e2040888e288290d1ea9f50df3f3aa8e37ef245edb147376e. 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/QM4TX2092195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6dae67f7f984ffac0cafeda10859bf7a5d66c6627217440cf090a97fad2bd3. 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/QZ7R41750696.