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 0x78016774145250b77f5d383d6242ed7aa6c257cb50bee69055866af62fb62e10. 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/685e8d3e-2d85-48e5-8466-37d31ab2d58d.json and https://artists.proofprofile.net/proofs/artist/685e8d3e-2d85-48e5-8466-37d31ab2d58d.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 0x352eb3132ad14941abefb5ea6d08f446ad6b96b839880e50b0ab5330237829d6. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZFYX2032524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f4c959187b207fefdb7829b756ed2e3f7204aa0d208e486b005bbfc2e29921. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:35:27Z), 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/QZK6M2039304.
A Través Del Espejo (feat. Kendall Peña & Melanie Espinosa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16215c8b501d2c6618d730b0e644b8d9769dce414425f5d3dcaa19ff2fcb45d. 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/MXH612200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1686bebbd39d638c5eee716072b49b42cf9622de2502b48bf36863f2276d61e8. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:12:21Z), 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/USCGJ2269582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b71b099923945e3023de961fdbcfecf49398564022d889aa83916e9ed6c57. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USHM22206142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1686bebbd39d638c5eee716072b49b42cf9622de2502b48bf36863f2276d61e8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USCGJ2269582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cad76beda044f15be783949ae9383fecc86ceecdfaa6ffc03f7335866cb0bd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM22206140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f0f55d13c40e5c3bc1f13ac144539fcc7c0026c21612e34e95c34fd1f3acb1. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USHM22206143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f4c959187b207fefdb7829b756ed2e3f7204aa0d208e486b005bbfc2e29921. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZK6M2039304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cad76beda044f15be783949ae9383fecc86ceecdfaa6ffc03f7335866cb0bd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM22206140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f4c959187b207fefdb7829b756ed2e3f7204aa0d208e486b005bbfc2e29921. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:10:33Z), 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/QZK6M2039304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1686bebbd39d638c5eee716072b49b42cf9622de2502b48bf36863f2276d61e8. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USCGJ2269582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cfcb0a11d1c36a19172fbce50fbadd16ebc2b1614ad620ef4b1c6b37229d1f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:55:40Z), 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/MXA1P2300107.
Me Caga Tu Novia (Todas Las Versiones Existentes)
Me Cae Mal Tu Novia - de "Todas Menos Tú"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ea02fe2999963122f9949bb1a85a01a316fe2640b36553ced394716f9eaa87. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/MXA1P2300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871949b28182023ff9568812718b7ebb47051cac6f015baf2e730f8fdea003b7. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/MXA1P2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fc0b1b43c3ce9bf425728c7752fe4e45edeb629dfac9f0cd49113a6f09721e. 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/MXA1P2300127.
ojalá existiera la teletransportación (interludio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719e92fba6f54e31de8385509edff4acb97e735d606e0e55d88184bba67e6089. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/MXA1P2300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd068a828e963c77d6a70098e6b5c37745acde3eb7268f3d917064aa9cd20c2c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:55:26Z), 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/MXA1P2300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcf916dae48416e3278d6cf49f60ab22828c4a6ecd622ea7dfdcefebb83595f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXA1P2300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c35b743e8d7aa862a9616053b3d6867b6288f03630e2d5cf66ee8699859495c. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/MXA1P2301280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c35b743e8d7aa862a9616053b3d6867b6288f03630e2d5cf66ee8699859495c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/MXA1P2301280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70582d454d23f87a04d3ba237a1cbcac8b25c80700203710d9d5491f3553828d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXA1P2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5e0f294858fce9074b5112402af1dcea637c8f9d2ffb6b7a8c747c0c979d28. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MXA1P2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd1c5316b29e83cadaaf2c0c196df5c9054ec232069b41d5539740b20cca5d5. 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/QMFME2365565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0c132d692807722705da0470f533848c77df3ffd2a7be5a5c8c49837a2e14a. 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/MXF012301076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa62bce7d6079b2baf22e92a6b92878f6c9ab9e523f19bd82af8ac899a6bc47. 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/MXF202300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa62bce7d6079b2baf22e92a6b92878f6c9ab9e523f19bd82af8ac899a6bc47. 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/MXF202300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841b1892dc60da5dc5a28d734c44f1c08f2a6d174b7afc63cc5d205856e99e37. 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/MXF012300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0c132d692807722705da0470f533848c77df3ffd2a7be5a5c8c49837a2e14a. 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/MXF012301076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ccdd1a28320cc6748e0ba822d8c33572d5953f653dd62ff8d81979fa56ae9d. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:21:01Z), 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/BK4DA2425199.
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