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 0xa36099a1d45673f43a9254a35f142fe0e069b3718b5cb1e4bc98e42da29be9fd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c85c4b64-07fe-4099-829f-69d6790438b6.json and https://artists.proofprofile.net/proofs/artist/c85c4b64-07fe-4099-829f-69d6790438b6.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 0xb47bc36f9248aea2322055ea187fa0c89e1bcbe8c52ffcaf2c511303e2c0241a. 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/FR2VZ1000322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b32ea627d631f841fb14d3863dca6eae04e6bf0c08d92d55777ac0598283cc. 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/FR2VZ9900261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3001cabdd86ae1d31eff45a5c1db9ed0e25b216ff4d5cd5780236bf9ec7cf22e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:41:25Z), 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/FR2VZ9900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215dff3e277d4859589815e17e2437400a7aab896e0189450b6a8f0724a3a203. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR2VZ1000324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f2d0982f9732dec0a31f870969a7706de0f00b2612f5bd3b8d46c1a174fcbc. 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/FR2VZ9900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680ec16205cce9f3a8dfe815380b79152acc442a03139ab48e728452a909c84c. 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/FR2VZ1000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4847a1bb84c24a7fd45427efeac7de84e0f77e357ccf49db13f4580c7b0728. 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/FR2VZ1000326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ba5835f972d749db629c4bbf5b35de1271459d96820c994871458c84144417. 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/FR7Z22000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4229354655f9e47539270bdda29beb16d08316069e1172977d2ca29b5e3c86. 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/FR7Z21400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd77ac451db7060713fe1b94e93c321b3b63ff3577af2883f823dc391f2b74f. 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/FR7Z21400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69685f927baf48e2f28787d1d8caa721b60ae5d1b34a58ff3cc6c717ed6107ec. 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/FR7Z21400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc302ed99cb706716b3b11f7dbac3f142e0ff60b5eac5cdfeca47b45c11100353. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR7Z21400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1483989e0e3b83442742f5372572bc8dad72ec15a318d8f55fb6a01300a24f3. 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/FR7Z21400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bcc8aaa5e544b6ca45eca0f0c5d4d30d19d87d330dd41efa17fa96ea10e5ab. 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/FR7Z21600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c4f4c7363d1d6cf192d5db65fa877adb299a4cb50abf08590f36f0ef4bfd52. 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/FR7Z21600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680ec16205cce9f3a8dfe815380b79152acc442a03139ab48e728452a909c84c. 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/FR2VZ1000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b32ea627d631f841fb14d3863dca6eae04e6bf0c08d92d55777ac0598283cc. 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/FR2VZ9900261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f2d0982f9732dec0a31f870969a7706de0f00b2612f5bd3b8d46c1a174fcbc. 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/FR2VZ9900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b00d8ea921d57550012d6de0a898a132077f973a1ccad72aa0013790323f69. 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/FR7Z22000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b56b611bfbf7e07ee5d15de2facb99a3bf670922ec19df4d29928cdd462547. 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/FR7Z26500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82169e79bfec63eea0bd329c85309cdf14047d4637353c1779b15564a21e0ea1. 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/FR7Z21900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf229fa5b66819e42fffb9bbafb0090c156cf2ba56fa894b2f5dbc0be91a4d5c. 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/FR2VZ9900223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a76b1b6adacc564974f28a0c428a0aa37b5f5adc4fe51031940745b7f0e1123. 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/FR7Z21900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ced9551f22c1f55889f1eac590de2e91fc934609686b5b53e0b105c26973651. 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/FR7Z21200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7268fe3c5f83257829957321b1d895d294f718be0c18248ce196ec3438dcf0. 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/FR7Z28300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d936babe53fe7e321e4d4c369573e1b5dce4cb93afa3e62adf73b81a92bd052. 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/CH6540859618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e3cf34fd0eeceec42ef346281273081c9bdbc095351380fd2efcb5e3bbe7cc. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:49:33Z), 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/CH6540859617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acc8efb0bc761020f58a1e1de3184daf586d63a4e5a2ceebf76a1177069fd70. 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/CH6540859686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ac4eb345e33b3774cac8fd1421face376f94003f31bdaae1445158059b48fb. 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/CH6540859688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018f04c46e18a024f107a63310d8c0109024e8de596df97524849e75108dc997. 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/FR7Z21500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52306821c73cd6c12de282d203100ee050e6a3ae4b58805c0d590e5a8eec4905. 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/GB7Z27900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187abbaaa1114826d481c038c008796f4ed4dfb304dd8628103d1400b9f9ee31. 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/FR7Z27800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cf9495ead643b00745dfda2bad8c15ccbdbe18d761451b8ec0fd40acdb146e. 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/FR2VZ9900292.
Turn On the Radio, This Is Time for Rhythm and Blues
That Chick is Crazy (feat. Mr. President)