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 0x061f2a6ea812d56312a6b8afa21dd2d3b1fc686753ab4989e78a45dd8b43b1c1. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97a37298-4293-4f3c-becd-66da21ac4f56.json and https://artists.proofprofile.net/proofs/artist/97a37298-4293-4f3c-becd-66da21ac4f56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonic Senses - Compiled by Dhira & Z3nkai
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 0xf262fac63b7c91e2acf00facc82cd8f92851ffabbae8e66579d4f1138162baeb. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBLV62015165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb884d42283ae26580fe647a3cfabcc703b7248256bcbd3a491119157664eb89b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBLV62015166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bbc3d7fa9534528a9bc675e19e4416e7d441d8c08b88c05a7e64e9fc986d10. 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/GBLV62015167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5085846d786e3fcf2ff3d70bf2b3927283510d71b34288685eb619bcc1f6ff1. 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/GBLV62015168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003a5e8b031dca0c5b6b4aec4f906eefe612393b35decb98f970e06fdff183e8. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBLV62015169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023ac6f4a467f0a4f466a6b50a2e2a1fe8e193bc5e14e7f0ca1d4259d22c263b. 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/GBLV62015170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738c529b4e320396174d434bb845fc65e2513c4259c83f4b390709ab0e285f5d. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GBLV62015172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee7bad2ce3a721aa235cdc1a85bd81114a8b71d69ae4538616d88b960bce8ca. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBLV62015173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa772e0bd1dafaa8df79846bc6e35bde579aca06140ba3180ded311f38e7c2bdf. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBLV62015174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4148b384d8978d9e07c31a4cb09770e13bb8042c82f4d2b85b4d44b46d687b8a. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FR9W11609019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e3c4a6ece9451ed451dea19c7e79d7496f4a5fed0f683e46e62ecbb5d63d6a. 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/FR9W11609020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb69838d9cefb2cc3ba9de123020ac125e61bd931eafedadb00cc74eddad966d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR9W11609021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625293f4846ba9e05215fedc49b8c8a3b8d7030f8a0ade9156d16fff34f14e1f. 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/FR9W11609022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baa95dee8800e897a846c75661ef6bafbd7dddff4e43e943a528f60eba52167. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/FR9W11609023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae9ef90770b511c3bbf7961a8cff78c7b802981b38081d0577388b3b51a8074. 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/FR9W11609024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbe2661ed2118c07b0228a0ef59cfc53189b20d713faa9cce2c7139cd9a84a1. 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/FR9W11609025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83598fce024dccaa8002b999f5415b7e07c7473da892daf85b29aa2b5d831813. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR9W11609026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf79e995cb2ec19a81839831bbdae2b882c060df9c602e330b31dbc6a752bcf. 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/FR9W11609027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84319705fe841cf8834fcf80b14ba02fd0b5c7f51de9f2b4fadcfc3e73c76c4f. 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/FR9W11609483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa058479faf98b85fe4646b3f64df67d98a4c916f7e932a9609103c9fceaf18ef. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR9W11609028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63b97a585e3c54d246ab17b264e4c7faba3cfa2e5a351c07e0cd1debbb7665a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR9W11609029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ddd5caaa2ad5958f64d12d3ae1f010e0a314004e239af5b2988aac5734f644. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W11609030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a3fe533a2f477e29f28448acf4adf9035beb10dc16e95843c98de36513687f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FR9W11609031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c25c20734f158e3e2cde423bbeab26570f279f15502acdf4c28c7c88a425321. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/UKR6V2220475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba5c5e0e3b4a6ebdc1c2d110f6a5bd816c1d028ef270b61e7f860ba1dd1099c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UKR6V2220479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5232dc67407f25760ca53fdfd16b1b4ecdbb4f41f06f22fe05c8f248dbacd439. 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/UKR6V2220481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d683b861a8af81f4ff676b8b9f064e996ab841c9f83f424f7aca4038d4a53d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/UKR6V2072149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2fe9e00b10055354ffd17a440fca1e3b9edd644f2c6e80bdb485babc7973e5. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/UKR6V2072155.
Digital Stories Book 1 - Narrated by Z3nkai
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