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 0x5a53b827118ad030ddb6039590fa98b0a99009fe8ce140dca8182abd5314f721. 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/7c12ecb8-617c-4746-a6c7-9b56228d9216.json and https://artists.proofprofile.net/proofs/artist/7c12ecb8-617c-4746-a6c7-9b56228d9216.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reminiscence Isadora: Songs of the Dancing Muse
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 0x738f3883fb50c286e343ce0d004871c39d366e225748907ddea18e1f8753e5ba. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGJ1649513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328a2ebad16140dbf1b27a025881672e8b31b351bd1472088afa51207a40f7f0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USCGJ1649514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614acff5dfffbb3837e30857a1295a3e2443dece9bb432ec7d33632f0c1339dd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USCGJ1649515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27fe7ed0b6786b5418ac016a40b4be538a2893fe96a335bb1abc9fb91fc1eb5. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:22:24Z), 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/USCGJ1649516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d70e0734fe0b7226ec16eddafa8c4c74655871800d318f11f0307d4b04783b5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGJ1649519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfee50042bddc2c685839af65679d3bb668c81906098149654d193d7fba879a. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USCGJ1649521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747922cc67d4a4bbee0ff02ce65584430c87fbc1c8ada50b4ee6add7c2b24067. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USCGJ1649522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb485b744e22fdc4e77e4788b99b9e8404c6e3ff3ed4cdf796d24bc7411e1795c. 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/USCGJ1649523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4515e3652103541ad98237f83cf289b5cb67d81063693cbc3f5afc5513a86e6d. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/USCGJ1649524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2030f8b6934650f3328f19425f0e29c6e31b3ac7134c3c8297607653a9798f3c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCGJ1649525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dc41e6a9b1579a6caac4f77f69b33c9ac3dc2682720541869ab22476f7fe96. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USCGJ1649526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e27a181f8fd998125518dd5e190634660878d33a7a72c0388747fb18db47a9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGJ1649527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04098b2aa34ec7879bd46441a676f3495c3001ab97cbf38b54ae846dc4e2415b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGJ1649529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362e9e0c05babd2205d9631707984860fceeb8732977518ffb7292c66326f5bf. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:00:44Z), 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/USCGJ1649530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e3e17e3d16068448c1617b7b4bf1099a88a39fca38ee9131d32f33999243b1. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USCGJ1649531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddeaf2878c653038a1a94dbd7f1d963aa32533cbca9bd7ad7a79384bad750a8. 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/USCGJ1649532.
Treasure Tower: Songs of the Dancing Chakras