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 0x62c6af961c231582796e131ebc91070965610f14c25e30ec1793145b4a20f9a5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea506126-4d5f-4d8b-8ea7-fc3baa3b6e19.json and https://artists.proofprofile.net/proofs/artist/ea506126-4d5f-4d8b-8ea7-fc3baa3b6e19.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 0xa056a140be6cc7c0962345fab69f8791cf6185dfe9e916a444fdb7f56a2bdca6. 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/QM42K2193214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0281bbfa22f0051b87fc1dcee192109d44d70bc54ba38315bc31b00e46280d6e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMHN2043221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3751394d6f6911b002bf93f573e081f47e9b5c68c4382224be20ee4f5f1568c8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZS632125277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63bef3256506ad07263eb1353e2ab1bda9cf6d77965958223620f38563c1b23. 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/QZRP52100319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9423bf945599eedb8b38ffd8d8a74f37aa39bc2345f2a89dc120c2941407fd2. 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/QZS662188622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3164542aaa8143e5b831b5d9d3dd6d3d3a60c8cd54942ca615833d75db5821dc. 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/QZS632172424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cff1429bf37a7002441d5229306fa7ee1f6a75c8e607f1ef6c56bab40044c8e. 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/QZS652149960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63bef3256506ad07263eb1353e2ab1bda9cf6d77965958223620f38563c1b23. 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/QZRP52100319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025639e9a2359b20493060b4ad3d858726c5ee50a272ffab7f91c4a528902917. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:02:39Z), 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/QZS652195856.
OKAY//LOST (feat. NotNevi, kiwifrooot & Lando Senju)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09382bd9f599824a44ec2fa8a49d265bb6375f66105192d7d7e28bb781b69b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USLD91737104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfaa9f6d92559d3653a969b654071c5565b3ba0f110741f4b8bad9fc74d26d5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USLD91738113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c769915985689efb074d109455f5391dead139dbd3cae73e670a86fd31d4db. 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/USLD91737803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bda2bffe85645c326f712e947e776803f264623c2d0acd501afbc22581ade5d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USLD91738756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa056a140be6cc7c0962345fab69f8791cf6185dfe9e916a444fdb7f56a2bdca6. 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/QM42K2193214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09382bd9f599824a44ec2fa8a49d265bb6375f66105192d7d7e28bb781b69b. 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/USLD91737104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d017c8b4a7cfbaee4b23f09a6f496e35a6aeb90b79a21aee9d86c06f9b486c. 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/USLD91738758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39262ac4f5ee1c3a20d7b021e31e9bb3d25dda35c8a15bb5f4f69c894e291f2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USLD91738761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8689e5bd8e9212f075baf513135561aa11022462041e290b911f2bd0f526c0. 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/USLD91738762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffe0f60bb2fee3b79b3d5eef75fc0e822ff71e177338447482beb7c92ca0586. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USLD91738763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cae555fa39dd10b7ab3d2da6f8370af232801c27022a2178fcaafcc1a37ae3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/FRX762254559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006790db4b23b1ba63806d6282e9855a51d7fe2afaafd4d84753f3e53a18c1d5. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/USLD91775046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0646d9864a97811f300c3407b53ae2d14fba76f3fc159a95e847d21d1469139e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USLD91780313.