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 0xa6aff3cccd5ea096804cb606db7030e3e6a1b3158728b3ca767db9c133ccaf3f. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f175a25a-e7e0-45e1-83fd-cb4e850c64a6.json and https://artists.proofprofile.net/proofs/artist/f175a25a-e7e0-45e1-83fd-cb4e850c64a6.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 0x8e60901635785298e40b84b663b868b4a31c10b0c67616157074cbf6fd0dd15b. 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/DKABA9509705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5602179007827edfbd6c6263ddc610d404473bbd1b1674b4745e04ee1b3e5f35. 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/DKABA9509706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fa25a6962c63085a4f00d77f0c8b685c2e7a63a5d2cd4ec142e395e1e1f1b9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKABA0700457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913492bcdfd99ec4690e9fb0c281bee8146c58ade7059c272a0e932169db14d4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKABA0700531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a94172fc1729ebbf9d52c17654266fa5f5c45de3099ce7cbe4e5d565e12b43. 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/DKABA9509708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbf9645ce431f3baa4d3d5ffeedfe9ba48a8734f2bf38b3f7d6a9e5e7e586a5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DKABA9509707.
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 0xede288428e73d8320e20f1afda72c67a802506beabaf527b4b05d5b92e8c680e. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DKABA9509709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68454dd2dd78b200a0ea1b6758fa7e5c6af5dda95a43d0da2d4d0ed8bcecb67a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DKABA9509710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b85a0ff347e1f5f13cbb5104875193f7d8ddc60619799499c5dccac824bb7eb. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DKABA0700530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc17a680cc52c0d391f15b8a468613122ac67568d14be2bb95ab8396adf4632. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DKABA9509711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649fe39168db6709a2605fffceb35a3a1e22b579b4805de6fcae85ce12ed8329. 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/DKABA9509718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f00bdb5bce2f277dd99f8310605bd000921820710c4dd181eade83906de220. 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/DKABA0700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa850ec459a1379c7dc3e7c93ad95ff5466dacf58c1cc474860a70dc126af224. 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/DKABA0700542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a71e19dcef1cad82f229cd23f244d0273895117444a446c5b8381cf842936a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DKABA0700545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c97c06a37e6a5d8df03036f0af1461baa23a10caa391814046a2b78f3cd4ba. 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/DKABA0700546.
Ain't That Bad (You Can't Loose What You Never Had)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b48148b3f4bb6a153d542cabab366102a564df00176b99cbf9d17750cd01a4. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DKABA0700541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e381959e708d7a989b1c936d7afd393501df35a42713abcb91d12aa7cfc216. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DKABA9509719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeda436fe3db81f17d75b27be1a3f3873d1592ef15a29bd66661fa57053987d3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DKABA0700544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b7a49d7aaa83048fc2850c87fb147039f3c26e0ff417c50355e39bed18bdd6. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DKABA0700547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df01d33f3def9345e413abc5065483e41ba4439998878da4f47e4d413ffc0c5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DKABA0700548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5c94792a54146465123a74f8639269a719d4f779f994a0f60617ff7c4c2c54. 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/DKABA0700444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcf944f1cebb893fb0a46d38b29b98ee21d57f87fa045d3444e8b78709da715. 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/DKABA9509714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fb99532585bea5ce7220c47987ca07c96cfe20d608f599c6d56d30898371e0. 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/DKABA9509716.
Good Morning Little Schoolgirl - 1995 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca306286b6d50b1d6dca82f57b0971ae6927d2132a49c49c9ab93afde7921b39. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKABA9509717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57681a5be8c156a2ac94fa3b7274a7eca623d7127f1928761bc11599c0f8dba2. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/DKABA9509712.