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 0x9265542ea020e6fbb72a6a77a2e9427a7595d79b18d88f1c8fc9a3018ed62e58. 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/5f50ba3f-b93d-42ff-8fcb-fc034f7f83ca.json and https://artists.proofprofile.net/proofs/artist/5f50ba3f-b93d-42ff-8fcb-fc034f7f83ca.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 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 0x2db5fbe14ca5fd41459d658b735a8d27d7330eea0646b478a063abfe31a4fb9b. 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/TCAED1962253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5b2edf99675a46b0ef32724a8ba1d3210d6b8dc97fc138d8dd2e54403f6596. 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/TCAED1962256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71a82ff257bc9bcb851f6161a3111fbe921213501a1e7ac3e19012aa33b8f3b. 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/TCAED1962258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be3d9cd82fc9108747557fa314aa672a783c3183feb4688db64ba88ae974bfa. 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/TCAED1962260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56f886f3dfd83f2f0107f557ef444b643e0ff56909fcd45fe36c34e7130ebd1. 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/TCAED1962261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc639502b2c1eb0c4f76b5091eb94420f8619e1ccf496d1fa93fd02beeb1140. 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/TCAED1962262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a204f54467bab692fcc262e4e4e496729969be8a5f55f3cf76df5ef35f02b92. 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/TCAED1962273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d74888326314c893a5d40c444f32f2b2c9f69b3c9b7028dbe78c9ca165764e. 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/TCAED1962275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd900d13d1baafcfd3bf5d342689b63faa4dfaf78426d0d5a677e285b1ad42ecf. 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/TCAED1962277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a18046c8efc724be95896d3c677fe4ad352a05ec5f68aac411726e7f0301a35. 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/PLC062396888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20dd383470db63a62b506e6d1cac2ed8d4b8736a74cc6c5acc10c6590db6515. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:24:44Z), 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/PLC062397055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1b68587af4ac97d18ece429c3bf360c8a6feae28c4c6b4d583fbf31459480c. 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/PLC062396947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7528881a80d87030071aa1c23ae6b7f7df42a5b7e7da4512385018af3abbe990. 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/PLC062396900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21117983d0ef34d9102ea5f216d1f7eb10e6a076b5dcd59d7525ec7a840adeec. 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/TCAEI1924621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb633d44fccf4cf3b794a3e0c13409eac32ef166f99461118d2696f75fe97e6ea. 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/TCAEI1924641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59130a5854658de8667aeb286f1885b9a9115759a856f7a7cda354bcd963af33. 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/TCAEI1924665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcbe883abf13e28a7503b0f8a5148f464cd4dddf1ef6b850e4c8f3b65a380b0. 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/TCAEI1924509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410231d3071a33a0ecc4697d7277d2d93b9ff5ba541f0ab38594ac29c2278cc3. 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/TCAEI1924524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e3dc9bf22801df7aaa95755470a8ab6f358da01da3d6790faf5a629e0195e8. 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/TCAEI1924517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac29e536216354a90dbf061d24cc762d3abf1a01f970fd1bbd973f14da1146a. 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/TCAEI1924520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcd8326d0d8904da52356cd07b39146b4d8fc0f70037f57c607f16ebeb8b041. 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/TCAEI1924526.
Live from Dharamshala Season 02 Episode 01