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 0x2c3f670f394fe01c6a15ddf58bf596b6da3bd5e11e96111eaf2e5310ab4dd848. 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/6b755fa0-d93f-4e47-a5da-e67ba0e41718.json and https://artists.proofprofile.net/proofs/artist/6b755fa0-d93f-4e47-a5da-e67ba0e41718.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 0xef2b2fe1e38b1dafde54948a4e2789de7730018dfa2373ad44f284dfc684080e. 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/UKZGC2408211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2460116b6d36b4e4d0fcc0f57173dbe47c1aba63d541378bec6fb4b7a88efb7c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:23:45Z), 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/UKZGC2408212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11613732468326f1855debd3a6beadd719b4a451843e1db758622e3085ac4833. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:39:47Z), 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/UKZGC2408213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bee132e24edfd71126e0af97e48d988c9ca3ae85845eda83ab8dbf09af03e8c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/UKZGC2408214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86342ee3d374beb2ed856905e6dadab89b67740891d57be9ab81221e2ab9573c. 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/UKZGC2408216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaeae00205f1f8674be007daa5503edd788d48285c796e89633d7fa478e9e89. 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/UKZGC2408939.
PLAYING A GAME OF HANGMAN BUT IN REAL LIFE+
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974da7a97fd976ed2cccaa3c6e9e993a36be7cb2cddf8f77a21953be4a36ea40. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/UKZGC2408941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787cf09d735f1c8d017d65c1b203f56c3c1a2d7d9a4001a794928032bdfaa692. 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/UKZGC2408943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ab779c14623f897033e318e2805ec67b64a367fbb5ce22afa3477ed9772f95. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/UKZGC2408944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266f43ffe350571b7b5380f84539eebe5d7b63d3f9cdbb7d0f83961984ed9b2c. 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/UKZGC2409918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a4149dbb49db9c652cdf5e1e38655debae06b09c5a3d268f2928c43837dcd1. 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/UKZGC2409919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9042644b7c00bbc85e6fc2950e383c683e48879a5f920dc32a1bc838bbb4d5. 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/UKZGC2409920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ac8fbeedbe0f7a507ce3ffd5d07da9d7de52846f9e730c3a785aae11c44241. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKZGC2409922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592f0904a588816e4c580394477b4ded6a2efa36569709cd0b0d2abe9c5e4e32. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:52:42Z), 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/UKZGC2410754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c73bff64f4e2d2648b804d0437ded012a7345bac8067413a33a60eb5adb5f0. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UKZGC2501987.
LOOK OUTSIDE TO SEE IF THERE'S A RAINBOW AROUND THE MOON+
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a852c669d4e67f19511b1a07e4d150e9f29dd8219491994dcd135c5e1021d64. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UKZGC2505762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1999a85c6d3f9849ccf85c21c35b1673b9bb5af1f2f1482cfc16c54aab4d3a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:55:30Z), 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/UKZGC2505763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd156a8210befff184defa97eb765d8421eb677b06022942044031a10b576a2f. 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/UKZGC2505767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78672736c71160adeb6527116a3e873de362551f9d333d43084307ca732c0e26. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKZGC2505766.