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 0x8e45efa85a6fa007e757fbb903b2238961f94485f0060850bb0d2eb2fbea841e. 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/a980013a-28a0-4c54-8319-5bafbeb50e9b.json and https://artists.proofprofile.net/proofs/artist/a980013a-28a0-4c54-8319-5bafbeb50e9b.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 0xa8d90b7b4184680ba0dbdf1bb88f2fa48b656ce6d8d55b91cdd05f2ee0981290. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GB8KE2207847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aca3632b911cccd4a00d098438e539a7a9b3b7f533856d587a43f20da1bd923. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/US83Z2211866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519122e21a8f25e3e25e9757a1f11dba5cd1ffc5b947114fbff867a2662341bc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US83Z2217278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154e0193d3e3e8151789ac945034bd9d1b03d3705f371e1428ea4ed4ec597a36. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB8KE2208893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51156bce7abcab253fab0f27d8589c3e7f8a32a55003e4603bb8e1e3e8d4a76a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GB8KE2208903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d137ce1f5c8ef73f65234c34d3eac4880394ee6dd0f374ff9c77c0ede3931f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB8KE2208886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b1fae16487f75a9cfc05f7c62c0511e8c0eaecd39194ffa78e40bb93fd9e84. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB8KE2210883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c7ab48547c5b6c87c7d7c6e064bedf8c9d691da38cecaefa33be20d714cbd0. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GB8KE2211420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec028f1dfd6c0070bfd2a58912043a62936afefabba241f279eac44a31d188f8. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GB8KE2212954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb733dd0e0f0a023896d1a1514784973e6b11cfcad089be835eceddf8c6cb22. 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/GB8KE2212955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb9acbddb8ef41abe7f34ce5cb048509ac780aac113dba16834882ecdafb3a5. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-15T21:33:28Z), 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/GB8KE2301477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5828a73f3ec900bb6006697bb085f510cbcb296c86d22bc3a1d728cfa8b5a783. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/GB8KE2303395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5df61731895c8fd4a5590300fc6b931c1af2e5e574c0ae52a942de783b8799c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GB8KE2304771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f02a3b29a7271a3e6d6a682509cac45efbf249f880499abe643339502a387c4. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GB8KE2305355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d44f3f2823155a10eecfca93b3651310b1a92647a4f66e9d2e1f64ad688547. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/GB8KE2306254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a722bd456ae540ca81eb58fa27252cb69a04447cec41571be57a078c25a60ec. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB8KE2306341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eeee1529ecfcf935974172557354272d277fd297182b9347dd0057125421754. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/US83Z2315537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69242593e0032ee04e8a75fc940d1152f538c92fc5b512d0b2da0ab0eb349470. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GB8KE2311368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c6ddab515384ee5d622a5b2078fb6fce6f6898e554f1df5ee8fbe85b634816. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GB8KE2314695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99df7d072188b4d49844ac78e51e19d338499ae2f4ae528fd1b37db58f9170ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB8KE2317820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd584b1a59946d369522a2a0e621453c38cb0aef4d59af0d4e80d5590d4d19d2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ESA012398179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f08e0d4dc42d2b7b221f58bacf9363fea7e31767b6bd46533f5013dedb0408. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GB8KE2325764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09049daa4e186be56c647467f0e7e4df4398e6574ef63d296e90de274e1f4f5d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GB8KE2325769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad558c509c931f2d5b23a3e1e7b408220bc1b5c6661a3acd55d2ca13faefd04. 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/GB8KE2325101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b1ea98165cd62dffd2226c34f32a6332b6ada20370eaeb46056b0a66488cac. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/RUAGT2449987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879bf72860c745f4bc9bba2ffb9e606ec69ce6c76fc755c83c9d38e48302e02a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/RUAGT2449977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68b44f246496f3f34a65a877dfb56fa755eab023267b0f0d6d65be3db0ae66f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/RUA1D2480606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812ae14804aff4ba857be4c7866561a60e80ca9e4565f27c28bba96caeb55f50. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/RUA1D2491543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc79e17d79fdc61ed8a5e37043d5468bafd0fe2733710ee53589dbd6571d7d3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/RUAGT2449657.
This Love Is Driving Me Crazy (Cooldeep Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25948cab839f7782d305e5e6d9f3488a33b368498ed2f4d8e444e0ae14699df9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUAGT2467642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085a6eee6c75dd1d5c66ec130187ef0b8abe9dc9ce7c2fdb54efdc72d3ee1c62. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/RUAH62406421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876a2f6043777dabe7c873c33712c51776c961ca7ed7f84f1b7cd31db40eb7f4. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/RUAH62413720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06a53033203b3d6695fbec4b2a34320b637af86473e260bf02ca447d1baeb0b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IEWGI2409981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f203e12dd1012267a34c88e10b12014914e2cce51f8443dbb4e2ed93c3c2d4b. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/IEWGI2409834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc46f027db73212c1244092588b7636588102e72ec2e9b31320fb4bdc80bb17. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GB8KE2502750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e140341050f4971111f2c2d1f75a68131a4638a78162e28b17e3db6c78502b. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/RUA1D2590489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09df6d19defbf2657409ec94acdceb80a975a38d739386fd72066153084923d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA122505801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1269281722a2bdd6cde4c623126868b7f0bd335d62292df525a2d6614bafab67. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ESA122520998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870733ec197b856e3a9c00b3096649f568c833e8f6eefce92a54d48ebeecca68. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/ESA122529766.