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 0xe7f352d76d293b39fe387fdb2d8e81519b11ff30b49c74ca0944717ba7a2cfa1. 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/384a32a7-b4aa-4dcb-81f8-ad58344dd232.json and https://artists.proofprofile.net/proofs/artist/384a32a7-b4aa-4dcb-81f8-ad58344dd232.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ben Met Je (feat. ADF Samski & Kaya Imani)
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 0xc288b3ac5ff54c9f4dc12e75a29aba226f467ed212af0ab6a84d8fd050501165. 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/NL5HJ2400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be7f1d27cbea419635d5865b8a3c187466ed739bb5f3d28e205c4d28c59e55d. 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/NL8LZ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cf6201de84a51e8cbb9a72d601aa10676acc40713355547375f098840ac3c2. 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/TCAHD2341450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be7f1d27cbea419635d5865b8a3c187466ed739bb5f3d28e205c4d28c59e55d. 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/NL8LZ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be7f1d27cbea419635d5865b8a3c187466ed739bb5f3d28e205c4d28c59e55d. 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/NL8LZ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5895f1cbadbd7ee7c26ab9ff289d7d89910d853aa08e3675db5eaf20aa0b62e9. 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/TCAHL2339141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0bb1a7f5de84e4f83f95dd124fe0c9a4220ca63b1007db4db2e39862f2c147. 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/TCAHK2344344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd005469a9a5d205ea67f44149729c19da253d7a02dd1706c8bdb1468a1b183. 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/TCAHL2339157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab552a2bac8e783bc84ac29235b50a933730a153280c46fd0fec1184729b4b5a. 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/TCAHL2339162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e38c144a4306c10e4d25d9a0a81b2d9fbb4525d42d71ed0fcd4fbe5fc8396. 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/TCAHL2339165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28510edc7af6ea566b811999547b5a1e9a8fa6ebf99d4c466800ed4ec558ece. 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/TCAHI2398869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb538da63557a2a18df893c2146a0e451e6fc7147f4dc69afee458c07d454f5bf. 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/TCAHL2339189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c03306c161387023f417b9e4e34c5e6b6a43ef8a7e574422adc152efa073d01. 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/TCAHL2339278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dcfb3912b480676a98d1df7244e02ccc4cec05d0628a23ecf4d8a75214a92d. 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/TCAHL2339282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bf0219a64d7892cec881557e95a6b885010be7835c222c396fa34e1b291439. 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/NLG662400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54609206e3cb1c23e86830c585c331c76060f97b0f3a28f97405f020f17123c. 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/TCAGQ2272621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecba3a4ea834a6143bffff58fd827786aedf7554de3a814574048af3844c9cf4. 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/NLG662300554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bf0219a64d7892cec881557e95a6b885010be7835c222c396fa34e1b291439. 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/NLG662400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3950df6be330d0969493522ba7097b070c8f7c460343108ae52572a563e7e625. 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/TCAIG2479169.