thumb|upright|Rajaloka, Saṁgrahaṇīratna by Śrīcandra, 17th century. Loka () is a concept in Hinduism and other Indian religions, that may be translated as a planet, the universe, a plane, or a realm
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 0x98da7e1c3449b5524b804807800b8c367e4d4b0ac8a4c9b82142479f19af0eed. 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/5a541bfe-b6d0-42c0-bace-e35850d796c4.json and https://artists.proofprofile.net/proofs/artist/5a541bfe-b6d0-42c0-bace-e35850d796c4.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 0xcfab0a9fdda481f738d564e31c28f1cb204591b2d760c3c03cfd20f9100406b4. 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/FR96X2054315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa9c6043ecf7f55e425fb4d7decfc81e9f01a9c9bde1bc5bd11222476f1f5dc. 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/FRX872183068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69427af94a184d91fe8d7854be8cb50803997d8fb73fea87ca2b0b7eee860d2. 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/FRX202091139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fefdf692a04b9d39e0bfc850ce5456404e732b623359798c977b10a4be2886. 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/FRX202091140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca179a17b79f76f900962ee050f0467c2533a7872f8fa657afe2898ab821f6b7. 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/FRX452439018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed6684fafd1b26dbca6aa3326f57a285ee9edccb0704e92daafe01ed3a9198f. 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/FRX452439019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6163d9deb57fceb0fbd845201356f7dbb16692b5a55364da669fc4965feada4b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX452439020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d00174cf14c6c6d1ea2906d16b83035f8f60202c0c5d4a4b7827863333d19e. 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/FRX452439021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14df371bbcb4f6a4b6b08f4e1509e8ad20e1a3057022f5a44d744f3cff603537. 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/FRX452439022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc27510c5855c52c4b34d0f533314cf5dbb21af3072244c6efc7e519b75651c. 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/FRX452439023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47055a0f0f5ec04a4384ee7f26827f13c65ec2fd1f6c8bd7633ce47883d955a6. 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/FR59R2460876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1945b050ae387a71d23e07b8cc25f4e7beade6f4edeb6f170f1d5e7021cac4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA72412382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0516fe85bda1e7aacf485dd22f4d65a0b90ceb686cda8cf27be86747351fd2f. 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/QM7282429966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e515c3e985276be84a63c431fc7e06cc3051c5f7aa4d9962e4362082c2ba03d. 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/FR96X2221472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed1d39a6524870abfd8d1fca9a41441ec78fdfb43ec8946c6b8aec96e531663. 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/FRX282121340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d553b4896b7f8933a4b1965eec7c5bd131886ccc7f271a6d7cae089b9e63cea. 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/FRX202091136.
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 0x54775b382d89be319b3168e5000628cb8dc6da0c9aa414f75df42168a7b03fe4. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FRX282083491.