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 0xdbbf96e56991ad3ae6a3644a59f907c554531a8a986e70be8a0285d7db8f029f. 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/b1504822-7c9a-4948-ac19-af386026dcb8.json and https://artists.proofprofile.net/proofs/artist/b1504822-7c9a-4948-ac19-af386026dcb8.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 0xde7ca5279ff383f38b40142bf8ac1b0e990f9031a7e2115b1016f58479a43f34. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/UKN6K2001692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94cda4aaa1a5770aedc06ef4858897204702cce0804730015fd80500767c27b. 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/UKN6K2001694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46874fbf2e65f9df085f5501af8a27012c2085aa38057b14cdd269c1b093225. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/UKN6K2003392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ffc618e02680e3a04c9e165ad4629b887afe8eae3964c97c7480e86a94f692. 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/UKQNV2100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4a542250a5812ce24830b9c3d4899dcc83a33fa970eeb65ab4fa5d0467db84. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UKN6K2100764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cad903b5beeacd7dbd02f4f7729b6c2efcf6e8143f428cbd6891986f57cf3a. 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/UKN6K2100946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b55bba2cb7d50131ee4e14d1f28e06c5f9e263d10c63df72a47d5d085378cc. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:17:40Z), 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/UKQNV2100373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefdb970b6a6242ce84ec59cd41b432d31ce1dfee671e2e0165c577e59e907d7. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/UKQNV2100374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d449c5c8a0cc8bee9296df4c84637db903279632b72ac81ffeb1102902b515. 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/USZXT2350989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09832a2279390148c2fde0044852b9a0d83b6936d114d9a4621e7bca92ad981a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USZXT2352083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9ddbd3368a0087bf9e0c86e9e5bc9567fa77d58cde7488d8096e4c08534fea. 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/USZXT2352268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce6dc743f2033fcc469a93a4f8a9c53463c36a06e9d43a30a31b68eb8f64327. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:39:15Z), 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/USZXT2352269.
Dream Theme / How We Feelin' (In The Party)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914bc568e19fab5e95478b39d2929143196a68a8368599ca7e77cddf3b722a97. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USZXT2453819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aad75ab4819777c48a3412e3d5c479ac33e680c4e1747961a80ee31bd7c850c. 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/USZXT2453926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8851bfb85695db7663b2e85deeadeae51ad4a7a2209d0ad92067bd92b2193a17. 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/GBARL2401801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a3a4c3731597bdfdeadcb7382d773057f692277e61133357d472305a4bdbb9. 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/GBARL2401952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8851bfb85695db7663b2e85deeadeae51ad4a7a2209d0ad92067bd92b2193a17. 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/GBARL2401801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8851bfb85695db7663b2e85deeadeae51ad4a7a2209d0ad92067bd92b2193a17. 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/GBARL2401801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd37093a70b59112cbb05c2432218185f22ee2ab73aacfd18a37d586b4324622. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USA2P2514175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7ecebb51dc8fc33c297622cd10e99bf1ce5bb32bc501a0a0b8f1209e288e5d. 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/USA2P2545049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1ab8a9adbc16a5a2322b21adf3ab27e008f6e0a3a89381c67891d8b5b57535. 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/UKQNV2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e23a69da544433f4d8f2155378be6e358cdb128461ef5af2a436e15a632a10. 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/UKQNV2000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447b111136e4faa8dd716fa73c8636526b256ba0520139ca019cd9be2ef6a712. 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/GBUM72102791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1981fa1576c3990edefd21482677fdeed4fbfad6e44833914849aea19e91ca. 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/QM6P42426528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfb62b03edd260eb2f8b621f1e91b8c19217948c139d4c97dd587e7f474bfa3. 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/UKN6K2200715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47a8155233259f1cf6c89c218bcc3ae9e280269e670e0a015a7c6e63335d64e. 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/GBLFP2268677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1981fa1576c3990edefd21482677fdeed4fbfad6e44833914849aea19e91ca. 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/QM6P42426528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1981fa1576c3990edefd21482677fdeed4fbfad6e44833914849aea19e91ca. 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/QM6P42426528.