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 0x61115d01b864574aecba0275593bb910ee936d8e96f4297a04fb86ae023079a2. 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/b5a1cf22-f044-4f3e-b272-4a35b517ea27.json and https://artists.proofprofile.net/proofs/artist/b5a1cf22-f044-4f3e-b272-4a35b517ea27.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 0x6a7b5a0fa6cecdcd9b11656ec52491dc2744c490c9703a65ffed8bb76dc9e54e. 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/JPD731101368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc977292f5ccdc9404e643c5fc9eeaaa087cd6f65788a3b6408c68a6c703eee47. 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/JPD731101369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c780caf0bce8ed80e93e6a5196a01583ebac7c26d1aa98a0b8577a56a2d1fae. 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/JPD731101370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf428653e0f68e679aa75d26019edc4f6e409a6a41afdc1cf0c47e6cf7aad50. 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/JPD731101371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a56b511def09bc0d1e90f229b06187ac064508be2e4e7ba0acd0d0259d732c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPD731101373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe7837572286158eb4027c586307b7a456845f49a5dda7c04bff74d53a7a82b. 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/JPD731101374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94913e22749d93b34ff33bb0cf98b988d50d42f02b9488d4fffccaae8a62550d. 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/JPD731101376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e764b335f5ec0e7b2ccb7f17a453c0c0e7f348660b341054879b4288701558. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPD731101379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef894bc723d049fbefd43d65d61cb917d207a4527a8cc562fb418cc252747687. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:37Z), 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/JPD731101378.
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 0xe83d83c06020814d865377a0617fcbcde7e262a875038c669805608f1ee697d0. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/JPD731101377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1332158fbca2f75b20838b5abd716b1f3d6b5337d4bb7adccf53d791990a1f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPP321700176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e295e2c84d9431171e083f4bd386769931a521e1addc55a61812aca7ba2a45e. 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/JPD731000451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a3bdf17fd1bde4b7d7e518ee1f500483752f7c69326e63dc46e72e6e3ec2bf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPD731000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5edc0ee8a5327441164da5e86e4cbcbfba0e458b77edfe54b743415def5010. 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/JPD731000453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe597eb1a7c4f217acb38e3902c9f972aa6d477bb0f191ce0820f85bd163dc247. 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/JPD730901053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8f83b28ddc8093527d92116cb62a83c2de8622b8c62341d4a6d2bd992f7335. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPD731000454.
IN YA MELLOW TONE GOON TRAX 10th Anniversary BEST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedffca92ab8f3ec234591e418133549530d082b8914cfa711b58ae63d194dd7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:32:04Z), 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/JPP321600443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ad492bed010daadb575496d0ba9c0a0a418364b36d0d77c0c26b45400bd270. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPP321600448.
Welcome to You & Me - Anan Ryoko & DJ Chika a.k.a. INHERIT remix
Colors of Life by Anan Ryoko & DJ Chika a.k.a. INHERIT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb7bb9a22f7140e2afb66a413751ce6fbc4c7816bb70ca8e9c0548881a673c1. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/JPD731500921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592c91d2cc0a3c5bf1bb78af852ff694e4f7891495742d4bed4199e4c1339164. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPP321700187.
Just Follow Your Heart - Hidetake Takayama remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3b4542affc74c5ea3959798bba91569dc65fda885bc797cf9c8f8d38e8237c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPD731300516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6702f978c7ce1d7f281f2b4c3582c44392a0ab591b2b04e92ad29714ec0b397d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPD731000455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594e51db9b383928ccae21abbade1d7dc5c3c00f234679d8cbd9319f986b4ece. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/JPD731000456.