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 0xe8ed116ccf79d7fadb552094d41a2234c0a72f7c8cb0241e683d551c34bc78b0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/144be0ea-d2d0-473c-9816-e9d326249810.json and https://artists.proofprofile.net/proofs/artist/144be0ea-d2d0-473c-9816-e9d326249810.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 0xc8b3a1cf216e09fa68bb8a43a80c03444e6fa81ab3bcdb814bc1ed5562414368. 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/USA2P1255515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989c510c6ef25977be6a3fdbd30881f18bbcca8f9ec442325484a1f5a035ad40. 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/USA2P1255517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0f7e8b58af9734e237e91948e48eabc8a8129ba919937b1df24025e2a462ce. 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/USA2P1255518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda25b9599179f81914108433fe812ed80a45c504e163bf2355a998aca53bc0b8. 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/CAF5R1800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531afd8e7e413bc306e430893992334e4b446cc2e86e6357f341aca0f656d828. 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/CAF5R1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb21d2013e9dee35a258e2fe0cb34c278ef7ec2c8079ecb7282e01ecd146a012. 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/CAF5R1900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f60e3f0acb2172ceb77c01f230462847cffb26a5148e7cc4d0770cf9b1562b. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/CAF5R1900001.
Wood For The Trees (Gone Gone Beyond & The Human Experience Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebaaa8aad729fc6ffd1c1ef14fd36d90e52aa6e9f547086d29544ad23159677. 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/CAF5R2100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4147a4006c1c681d587d269d98a594979f12bcd1f5d6ab92bc7ebebb2bc10ff6. 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/CAF5R2100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca90bf214263f0b05937200ac59bd973e0cd7f01aaf37ce14c43a5008c03b5d. 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/CAF5R2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2c53d785d90bcd5efbabbaa918a9e440af3a7e79ff8d9d5fbab2eb1b9cc5f0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/CAF5R2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb987c909202a065d9577ee46d11a52a66748edc8dcfcc34b8fc6cb6680931a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/CAF5R2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9ee618c2da5beaa2d54c718815b73c0d18a22b3ac01f47b8d89f7da387e966. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/CAF5R2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494f15fe9e32f763d8dc9005ce1150aebb9b02a968f4b854f6ab0c16385c58ad. 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/CAF5R2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e19dce297dbd54d00a05a2cb06e5bc4220c87cc3527ceac2c63763086c833c. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CAF5R2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77fac21055e910859cc4841ab1d86b0dfa7a8ecafa69b506b60edf7472bb0d8. 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/GBKPL1788376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9c651836daf67e2cd629d1c739c432a9d12956ec76158f6c3c62e77013d7c6. 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/QZLBC2202056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77856b6872f5525c623107f8c32905f98a438d5eb2413de48c07e9a633d0b36e. 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/QZDA52082740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa863d5f30d5ae3939d7142c3f59732c41e7d0b4248b8bc43c93842f6d601c5e2. 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/CAF5R2000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474e68b698bea75734a22779a04fd7b010cc8076efb1fbcfd92e5bc3302ec492. 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/CA5KR1503867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128808dc73ef624a951885f3b1885c568349d937ba78318038b97c4093a685bb. 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/QZPLR2069215.