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 0xa325d1f0ea08383ce0ac6e4da5dda67f054686e2fb38a2e55a97f15c38d43e33. 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/f7ac5991-162a-41d8-abc6-6d826482e79f.json and https://artists.proofprofile.net/proofs/artist/f7ac5991-162a-41d8-abc6-6d826482e79f.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 0xf79ee0ef9506996c16a9b280e9082f2c1ae05e7cf1f089a42f57f82cc9dd8218. 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/GBRKQ2298949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3f6a59e5e4c14ee332cc697aceb3d4371a9b3ad892d2f71776811d37a98fe0. 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/QZES52234140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68aed95596cb6d7a9b50b0fad7d814771d843b4f1eca05d5013542c9389da42d. 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/QMFMF2375538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeade163dac8ef5ebb76d3b2a9080d04d09b7aafbc3f97920e79519b94d9e4951. 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/QMFMF2375585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343ee8d046cfad1e0e005b8c830979a7a4cc7a2f86d8ee35d259b7021167c81b. 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/QMFMF2376181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc902a79e5b5c5fa6bc1aa9ba9d51f0131fdb197e477f109b25f79d389d4e01. 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/QMFMF2376201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b38622004ab2c298f940cc690f30cb698b4a9097722dff474043d794605fab8. 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/QMFMF2376187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2ce1adf405d55b221591c6e5b6c18a4713c6819e04ddf7308d9158acb9668b. 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/FR96X1912794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9082ff11d2c82bbc253344f17e6116bdb210d8348a9ba884debde8ed5aa9b45. 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/FR96X1912795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086290371df01ed33b84c13a7037df0c0b3f6522c5069b1d003b7b7b1701abc2. 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/FR96X1912796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5551b2a07eed13bfef9c3381617a3fc4e0273cf124770731a659544e5f963c7. 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/FR96X1912797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e976297f85d59913fedc999531148ebff36b4f4a9b3b27f79e15a2bed13219. 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/FR96X1912798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73762f003e872b4d4143790ecadfb720c8f67e9d32ec3a7ed6a2e3b84e5fa4d9. 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/FR96X1912799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf18266f526aeb634f806620ab536adf00bdbabbbc18773963916afde72a690. 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/FR96X1912800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7cb8b1cfff6a8b0f76d7ef7d3f87ef9682d776c88e00e2ce40f990ec0e7bfd. 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/FR96X1912801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21c32866a2cff9f9476967a37ea66efa0a11bd65d722c6c3312356e73c7c7f7. 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/FR96X1912802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93714c57e26d8002699fcc2b0b2312639b955b6b48b66d8f60ec5a23febe9ff. 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/FR96X1912804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c7da0d52d1e92b8680fa56e2fc20026570c06326abcaf06e01229961b52f33. 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/FR96X1912805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0723f24e25cc4cc875742e2a307298a5faf656fad4316b5b85371debc591c06f. 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/FR96X1912806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485db0ef4eaa40883fca9c9246e05bddf85dcdf0c06e4bf493398194c06d2b20. 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/FR96X1912809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c5a6cac5a5bbe3543c84643b9191b30890c6566f8fe078374d35fd753e6a88. 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/FR96X1912810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fc6fdabf012ed07323b0bac791c3c929e945717f9bdc20387b52e8fe131764. 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/FR96X1912811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6a0baeb4acb31d4a100e577ad909f9b144669d9d9510fe497905f6cdf919de. 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/AR8BH2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28735e332b4fc14d6e1aeeba2a3fc9ee1c2fb088a2aa9dd81dcc9442e082d76e. 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/ARIXB2500385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8aac8dc4fb26a716b37df0297c77e6405eb1e2e500d993a402433cefc208ec4. 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/AR8BH2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8093a02ef66e268379c6b813f0554160df8bfcbb6e6f612e33d07abd6b6f035c. 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/QMFME2453812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d480f7ff373f7849299bde278641f3127c6e05dbecce9b7181ba5b729e4459. 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/UKXN22235388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa276bb12c8c88c495c23254a483f1fa652c92de8aeb795f014b575afb559ae75. 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/QMBZ92251508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa387814be678d2b2ee80c53147f6078b85be045eda5edff8bfb929ec9cde82a8. 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/ESA012221390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f5e5a0bd396db044f1648d4de5120da91cf1302e9ec97045ef20b6b2af0f29. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/COC012135256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a2edc2c400a2d73c8f978357bfb9050687b9ab17ec44f9c9ff74c5a0d282e3. 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/CAENV1721780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6364f8d10ed983e1f4b2f04aba8b5e9aecd1d9951542c853066ac0e69022fc6. 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/TCACL1617914.
Si Me Quemo en Tu Piel (feat. Pipe Calderón)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aeb9c826c176e5c9f8268d59b17c601245cd5c4329c41cc9ca8be744ab04ba2. 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/QZ5AB1621605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec5aa0613ad8bf9be82628fa6712c21ce08ca0004234737033abf4adb9baf3c. 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/UYM121501891.
Por Que Te Enojas (feat. Pipe Calderón & Alberto Stylee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe643065c734eac68b1b72959de4ef0190dde98eed406a24496f8bb16d83eafd1. 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/ES71G1514256.
3 Deseos (Ft. Tony Lenta & Pipe Calderon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955e9cd94bc3a6563f9ec50f8be25ca8e72e7d5c11a1f37b3d626416ecda306c. 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/USCGH1233474.