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 0xe0c64b2ddfe695e200589a278416f2f88a265e1305039d7a2260dc6b85159343. 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/04a9a9be-f664-4c62-80ea-c83b9f341fde.json and https://artists.proofprofile.net/proofs/artist/04a9a9be-f664-4c62-80ea-c83b9f341fde.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 0x314f72fd5956f4b863093398a63d794da02bfbb8eea4c9f157a68141684874e9. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/FR59R1960400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e7c258bfbeb525382696e20307366369f6b4d081d9b8910f5aafcf572d7e36. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR96X2011108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b06742589ca5ebea321ca5ad6d67e72730d453bb7e45d275135cf80f5ce6e7. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:39:18Z), 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/FRX762167188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd4585ee13230c3dcf175ef7e155c55824146c4a84f7e981ba01b67e47d21b6. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/FRX762167189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b29449efedb02afa101d38a977e7684a3c1eb79a97ab66f5b7cb756c89f8947. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRX762167190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0b27cd6d3aebcb8b37ffefef90012af47df56bc8b07d15a8805873b80cec1e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRX762167191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4d5e11aeef3319e10d3515813740a20ac86a5ef340476e6bdb308eab607950. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX762167193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33225c45f29683b85a8656b4eda6cee963a2157ec6b2be67ef408eeee963893d. 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/FRX762167194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5e9a585467c64b7f9fa4e93877e611f622ecde7d1ee4243eb3e2f03a075a64. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZW9L2328331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbebb36d85345876735a5eb0f4bb42e62ef915949733d452b8bde4c7ce6f1539. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZW9L2328332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e9f01c5a8f56d93bc5c047f6fc1cea8379ae183d8c9333474074f301e57df1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZW9L2328333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12515d5a62dcf3a036e18084f1a11ee93b5451b32db33a7e314c18aa7f322cb2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZW9L2328334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4feda0dc302227d540ddde96fcc7a3f6e9efa05cd69df97bb5fadb39032dc85. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZL5N2436871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e0f73f15bce887dcc3fd2e7a6988629aad7ffcb2c6e33162c4fa8444dcb021. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:47:04Z), 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/QZL5N2436873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7774cc5492e657899dbbd1312d057c29e51566a255db92e410d366fc85a904. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZL5N2436876.
Алый цветок (OST «Сказки печали и радости»)
Алый цветок - OST «Сказки печали и радости»
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3390b424ecc97626d87e6bc2eb6926a7a9769b9a6519ee651e416e90bc801f58. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZL5N2443558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0636f829b7936decd402d857b1e3a90f18c1347474dcf77cca23ca43a6fa5d6d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZL5N2446948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091e4f3bd21e13b7466cf7f7c00425a0f6edcb64c9bd9cef7c79090caa3c2f4d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZL5N2449031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6888456e79af683ce00ad90e41b8c8eed73c238fd595ccd2019980e4d330fa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZL5N2451439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54e23630e355dfd4834eee63f32273240b515af8514f5ba56071d58fdb6d0ac. 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/QZGLS2368291.