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 0xe437a64b5f1cba9d4646a5471ef7c4fecc75b5f86573f16247e57c708fa90691. 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/54877298-b748-4309-a8f7-a25054450f42.json and https://artists.proofprofile.net/proofs/artist/54877298-b748-4309-a8f7-a25054450f42.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 0xb24cab527ce0f424b1c5b7976f5ea1aaf11e381bf010daf50e7d89f3d8b72948. 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/ITB002200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4ce5963ef3e2241a52e3d83974249022393e98b2eabdf9fcd6eab97e32c77c. 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/ITLGE2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a74f4ecb1b5da356e14b880b4394b7298bfb447ef30f72db150b42d6f579fac. 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/ITB262101050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fe9fe8fab511995f127cc7660ba7b1aeb59c150b9f797302e5eb49f8e5c958. 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/ITNIE2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607f5747b94c18e350c2f837f74fca8ad34a6526d8b100a6d7ad5e9b8c5bc70d. 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/IT2J82300021.
Blessed (con Madame, Drast, thasup & ARIETE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fd23faa29b03a711fb7d79506e108b049b1ea9ffdb65161df85bae5209226d. 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/ITUM72201095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30634f40c2dcfc61a6e5feb35d7a8513e31753c053dd82517c51b0f568ed1266. 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/ITB002000449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d912be6cce476421c9a0efd7f969568a8183822c2d01f0c4887052b6f274029. 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/ITUM72100455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24cab527ce0f424b1c5b7976f5ea1aaf11e381bf010daf50e7d89f3d8b72948. 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/ITB002200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a74f4ecb1b5da356e14b880b4394b7298bfb447ef30f72db150b42d6f579fac. 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/ITB262101050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69890efaa2363d11c06d54d8770c30edac396ea536246fc9178b21a56c2925d5. 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/FRX452164582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854a1c8ad42d2620d3a5244b4e933c187c99d300f2d46b3eb7b72f7884a9e981. 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/ITA642300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea365a400d5bee0290d04b04044a2dc04e4e456318045557b547fc73b11c287. 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/ITLGE2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd100fba1f353db5a9af1961dae95713eaf820824ba7619f6a76f63b5acb95dab. 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/ITLGE2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf9cb8887d834f1c8cace3ef844f49a4ea86377bd04bf130db4cf1263adbfc6. 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/ITLGE2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9351ceb0b63fc5506899f9f9fec93349ae12cf8641f493b2adea541de2313089. 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/ITLGE2200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c5633b503b392a259dae517f74edc4256cc26048374be6762b0d1fc75fe9a2. 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/ITLGE2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854a1c8ad42d2620d3a5244b4e933c187c99d300f2d46b3eb7b72f7884a9e981. 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/ITA642300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2b4c566343c1bd9af954b807d28f822333ea026135c575f89abcef2b1bf041. 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/ITLGE2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b0504d3e74e469cb6151df4245354346ce9eb25c52f1aa2c8643edf065d1e5. 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/ITLGE2300026.