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 0x8556b031a06e7df95f223f5d2d62ba51ad7cded41c678d1c23325a396795860f. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e56a8d02-2e95-4f8a-a5b3-33e97d321e64.json and https://artists.proofprofile.net/proofs/artist/e56a8d02-2e95-4f8a-a5b3-33e97d321e64.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 0xd08b9d8314476e32b9bd7886a3b141be7846387cbeb8a1685ce3ac2e553b7494. 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/FRR642001413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd424d48cd9b6cf3706b66c5c1c072bc35df42055f983ed989a7a846446d2c236. 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/FR9W11906609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd5815a43e7e22e173428aa3d93e5e0f7522f7a176407388c96ef86a7572575. 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/FR9W11906610.
Make It (feat. Nemir & Di-Meh & Gracy Hopkins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe310147fe3ba3d162ed7ff00692b7dfbae5974f136995034d34fccea220c917a. 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/FR9W11906613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55aa1c5e9286f70901133686328328e8206b982874404d0f7e86435574279f4. 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/FR9W11906614.
La belle époque (feat. Deen Burbigo & Gros Mo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c23b3b2ee9a020b3c1d9fb8b1d23e23422d10d986b64488b831783bb4b0abe. 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/FR9W11906620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08b9d8314476e32b9bd7886a3b141be7846387cbeb8a1685ce3ac2e553b7494. 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/FRR642001413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174c19d49ac6c772e53c6bcd499fdb1c9310d0bbef5dc702e869330fcd387970. 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/FRR642100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d54c1a5ab2353a4f0048e3a4ac16deac6666c9f9001a63afab60fee7621450. 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/FRR641800271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d26072dc4e3ae8c91f21008d71af2c03555c86dafa8858ee949fb672fa5565. 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/FR9NG2300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4f846e825869323b52b25a45ce32a16f036c75d6ab26ccd3af7ee81a0d2c0b. 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/FRR642301394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117f53b65ce251238eacfe7f89796e597fcc7715359083f0fbba4cf6b0e1db44. 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/FR9NG2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e06c78000a42b045533295ce313a866a322823e1a21cfc64cdcb7abfc48500. 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/FRR642200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85727081fa7f3de51c8ef9472c1e3a5aed0b48a4d64adb0fd673a02c32d202d. 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/FR9NG1800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f424b42df76d6de679c93eea41af6eeb2501fc2d88e4bb95f06291f1ff08eec. 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/FRR642200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be80f3de5b730aea3b17fb8b48324bfdddda36d87693bca6f93d86cba06a230. 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/FR9NG2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3b90f263149414e6fec454b98f5646a7bb4d2d48c6aa074e7a1ef6b3414a71. 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/FR9NG2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fcbdfa965e0c5c1968b16c6f9db8218f347d01cf59122bb38b4a2b6947c51d. 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/FRR642101240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b503dd3362daac5efda8a8a2aa2311028a7797eb485998b1ffd783773e3376. 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/FR9NG2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d80f52b1e29f192963194d3235a064805c8e37ef82e88d22867f7f68566193. 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/FRR642101361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dc0c8ff1ca1c1a0461412576a69e108463d2f377a638d6bffc99a8d080c46e. 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/FR9NG2100040.