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 0x22dea6dd3397ff7f62f8a3ec85fabe6a254c4a18b67204fcbb7ace07e94216f7. 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/f1cdd550-cf70-4272-8d91-16c2c0b35d33.json and https://artists.proofprofile.net/proofs/artist/f1cdd550-cf70-4272-8d91-16c2c0b35d33.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 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 0x62f35fc2d6e6b247a62174dbc38ff56f0147a63875d6ec6fd335ddb5cbef2d74. 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/QZPJ32383686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915c51b3cc5c1a9e62057d6ce40030853225dbbec54484b7fc839f2dcf38d1a5. 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/QZPJ32331971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b28360a9a4751e9a229a77cc9e1b90f95a7bd3f422697e25ef14e5c6977f06. 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/QZPJ32331981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d82ff9f40ef837a2e52844ed3049d554fdfb96c47255e0295fd28702bb6c967. 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/QZPJ32331982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf015c2bfcc262c6fc9562fbf44672e893fda95fd035a4a25f26635325f1a2870. 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/QZPJ32331985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780839bb0fff5483b3277cef661ad7da1c83b29cafb9919b5b85d6b4b4330f7a. 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/QZPJ32331988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8954e9b36963b296dfa55a3f1f5ea6f0d431a79189dd5ece512f186c8abdd732. 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/QZPJ32331995.
PM Rockin' - Music from the Mother Series
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16358a48da0e985b25f2bb27c742baf644351d4eb41e22c24ae0a4ee3f64c0a. 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/QZPJ32390663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f35fc2d6e6b247a62174dbc38ff56f0147a63875d6ec6fd335ddb5cbef2d74. 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/QZPJ32383686.
Ending Theme (from "A Link to the Past")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e62bfff3dcf90ba74afb16e2ced0bc410ea88e440dde18541b2ef0d66162b4c. 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/QZPJ32253719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdd2dfe1302b85fefc3b189ebf5278bc4419e3646640300d87e717239c93e49. 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/QZPJ32253732.
Never Forgive Me, Never Forget Me (from Silent Hill 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4151c56b13c646c172b685594f2c5f512f2e163e15a6c5aaa1e4935484214b0e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:34Z), 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/QZPJ32367187.
Alex Theme (from Silent Hill Homecoming)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51904efc460c6272d9ae045e7d305fe76c31b54e18346ca02c3578ff769c4bb7. 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/QZPJ32367198.
Love Psalm (from Silent Hill Book of Memories)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854803791eca00a9566b9ecb3d495e97d3f66e7b6f70bc4b6411eb967d593c5. 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/QZPJ32367200.
The Turnabout Sisters (from "Phoenix Wright Ace Attorney")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd084a8a3a506f066c2a54c9eda72036d06603f9638fdcab099a35356628375. 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/QZPJ32172065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e837652af7bf3d43c8689519777a7aba24d6f4745f1d44fbdd49f1a2af7420. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:43:56Z), 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/QZPJ32127332.
Where Blossoms Fall (from Bravely Default)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863e3885f5c5e4f8c5472d102c95eeceb82d7b35b288fdf6d10e7c553cb9bb52. 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/QZPJ32276514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad9e71c88793700c85e7d45079552f513e2bf27c397c0355b8d01537237ea02. 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/QZPJ32230587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567d15c0b7dbeed9c26085c126053ed1337d2b51755d53958eb9813c54fcc440. 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/QZPJ32230589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0fb5188f0ab822a5fab535a21f26e7b81e0480ed72412748d4600b2f40e748. 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/QZPJ32336440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302697b9ba0e8e615ddd639fc5f65bfc2cac1ecf50ed22a67338ba603e5ae102. 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/QZPJ32336443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b1ca945215257167ee004ab62ae5e402cf7d39c226755cd06103cc7d2612b6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPJ32336448.
To Far Away Times (from "Chrono Trigger")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28124fc881b8a392cb6ba0bdb9b9bb4fd5c47297870d787d345b254a70a2b2aa. 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/QZPJ32310524.
The Great Tale of the Little Ones Vol.1 & 2
Makna Forest (from "Xenoblade Chronicles")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5ba3381c5c4ca0d54058b1b7d09ee8cf35cf3baabdb28d789a72b8b2025c72. 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/QZGWX2180169.
Pollyanna (I Believe in You) (From "Mother")
This Sacred Line (from "Silent Hill Homecoming")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd140b416b3b2bc90e4e57631022535ee2c0b4e8c59b3a1f2864d4075e14020c4. 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/QZGWW2095461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc2041fbbd2be30939054ccf0ef741d0e7a06562463bb22a4d4bcc1854822c1. 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/QZPJ32198617.