thumb|upright=1.2|Depiction of a scene from Shakespeare's play Richard III Drama is the specific mode of fiction represented in performance: a play, opera, mime, ballet, etc., performed in a theatre,
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 0x369aafa7754476a9bfd095210d526a13ab11ccf637c29912fc813278b797ff96. 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/563c28bc-61c2-48bb-913e-f25212368188.json and https://artists.proofprofile.net/proofs/artist/563c28bc-61c2-48bb-913e-f25212368188.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 0xb64c3087711d9f6ec3ccd5a5ca4f33cca87adb50014cf981ae700892afa6b89f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2203076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c6e233e48a6afd090be5a7e49e55c4ee69032e16817e7ef316bbc12cc0fdf5. 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/QM24S2203075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25e28b3489f5a9a057a5531459d47728a58d303bd30a0fdb001ab8bd4b49a6d. 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/QM24S2107675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa896e56766c1ca48dac946384a85b31fc7b8dfb3c0e5e4f0afc44d46b3c818f9. 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/QM24S2201333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a895aa359aee1e88cbba4d3f5b927f5c4396a22f7027c7d7244949e7673184. 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/AUFF02100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538cfbe7e65f8ff7288fd58d5757104bd985b50625ed48a868bda9349cfa10d0. 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/AUFF02100262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5cb41a617a268144b7e51c0fcae35b357f018bd6bd358b25e4df79d8675a58. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S2101890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcd09444b47ed4f08ce3ed49ca3ed37d2c567ca68f43b6b5f9da175aa029970. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBKPL1952477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f541a80e9be708addb38be2dc90cd9deb52188b153734700000a47b928abef. 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/GBUM72304774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7592116bfe9d7e784378e69826fb0028151033000ed0c5810fdb16c66f27a518. 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/GBUM72100366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bec2df314090a7c8f412473c1be78c9eb8c63a53bdc99c9b9a42bc90ed3a07. 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/GBUM72006904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc369f913d149e84016a51526c38587de76c3038a47e73fc7e32d38b29e64aa03. 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/GBUM72000850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f541a80e9be708addb38be2dc90cd9deb52188b153734700000a47b928abef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM72304774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bec2df314090a7c8f412473c1be78c9eb8c63a53bdc99c9b9a42bc90ed3a07. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBUM72006904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc369f913d149e84016a51526c38587de76c3038a47e73fc7e32d38b29e64aa03. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBUM72000850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bec2df314090a7c8f412473c1be78c9eb8c63a53bdc99c9b9a42bc90ed3a07. 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/GBUM72006904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc369f913d149e84016a51526c38587de76c3038a47e73fc7e32d38b29e64aa03. 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/GBUM72000850.