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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe47b8befc1e012714ab5edbf9c1169aa7287cefe0f865cafc50fd79e25dcd25. 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/ed2c535f-73f5-4c2b-b177-12a5dc53625d.json and https://artists.proofprofile.net/proofs/artist/ed2c535f-73f5-4c2b-b177-12a5dc53625d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Song of Storms (From "The Legend of Zelda")
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7677eded76781e2f79ef2775829c5300f3dc7a80dc609ebc8d6dd84378f0ef. 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/UST8K1752839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99424b3b1cfc240fe202d3e2a484d5618a3fe113d5861b3e8c2884ad5a934dd. 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/QZ9Y21772703.
The World Revolving (Jevil's Theme) [From "Deltarune"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9560b78f39176c1f9037eb37f069395105918e29bc12650ac8a1a216800d214. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHN42047233.
Shotgun Kiss (Vegas Palace) [From "F-Zero GX"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc56001a7b366436330a356351d5ba8e3cee86ce4759683d9c5b6e8239dc86b. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZGWX2074456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bcd4da4bed43852d4baa7f230841f0e417d3a2453105a8bea7eaa4d4ac64b8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZGWX2104065.
Studiopolis Zone Act 1 (From "Sonic Mania") [Remix]
Studiopolis Zone Act 1 (From "Sonic Mania") - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7251a8ce3a56a38ee8d3edbc6b5dc0e8a63c9a4a22ef7d4721d2beb8a0cb8d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHZD2169999.
Midna's Lament (From "The Legend of Zelda: Twilight Princess") [Remix]
Midna's Lament (From "The Legend of Zelda: Twilight Princess") - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11964f4d2debee9fe9ca2ad8627a107d92599b45456d576286cf73e375d015ce. 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/QZPJ32109973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb528d69a5f01344ef6cadf485d71a389d8546a55e4552401580e516f926bacc9. 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/QZRAS2200202.
Lost In Thoughts All Alone (Fire Emblem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c2b62310b55c8a4d906ed790c4e07dc5e57653f0c44126b8b20c4f856408b8. 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/QZRAS2200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d975ea7a671f64919648b508e0ba96f38e5a7f2fa2f96d581b747f3248c8fc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRAS2200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb528d69a5f01344ef6cadf485d71a389d8546a55e4552401580e516f926bacc9. 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/QZRAS2200202.
Stickerbrush Symphony (Donkey Kong Country)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed9457e3f7092684ac0f302db0743ae1ec2d85b49d1c41637fae902a535a0a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRAS2200203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78887d6bcee903131fc3368a0c9af91e1c31a547f304a88ffa5ce1dec1322d1e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRAS2200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661813c6c6b6d190e781195c95bab85798e29f676475f9b4ce5936061be7c7c7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRAS2200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c2b62310b55c8a4d906ed790c4e07dc5e57653f0c44126b8b20c4f856408b8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRAS2200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e89721c111179c8dc497ee642faf0e5962e1beda6c59f937382b1f53d4fba2a. 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/QZRAS2200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb830d55e0b255e035eea68af80e7d63539382dbfb3f59a4e5693cdb9d77f9c25. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRAS2200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19533cc35e3dde12bcce62b48c441bd067481e292dc09218410b765ac50dd32f. 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/QZ22B2023950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cd2e5f24e378fafb1e18e753a40e0b1b0fc7c7be1c56a4c1cbd0a1e5ce3709. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ22B2023958.
Song of the Ancients (From "NieR Replicant") [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff23137cf06100f7a86990c3555c78ef35963d25ae25b99d41d80ae08d5147e3. 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/QZGWX2182946.
Eterna Forest (From "Pokemon Diamond & Pearl") [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2bad72992cc8a3aa2ea59978b89beae98cd9ad93d380bf07e779318f4f800. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZGWX2182754.