Dead Calm may refer to: Dead Calm (painting), an 1827 painting by Augustus Wall Callcott Dead Calm (novel), a 1963 novel by Charles F. Williams Dead Calm (film), a 1989 Australian film based on th
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 0xd345327b39a5868e64ad083af10489b41c54471b1f4157faf4597e2dd589f7a8. 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/33f05d81-cc8c-4a92-98d5-5530f7cc7b7f.json and https://artists.proofprofile.net/proofs/artist/33f05d81-cc8c-4a92-98d5-5530f7cc7b7f.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 0x6a462ab7a81f84a8c36bc9d264e9f563f5d2733e1ea183c3c5d230aae7bde508. 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/GX4R52323069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e89c0a53ea635d4c97dde7877e8b0d71769b61b7d30c2ddc5779129d64d7ac3. 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/GX4R52387186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443723e0ee8251c818a0eb5a66a756379589877dec72aff629e6d5069d70761a. 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/GX4R52359251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dcd0b4283f6e4c5e623db03946fb7ac0ba98da0b2a5fd5f9a46945813092aa. 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/GX4R52395060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d4cb3aec1d2b866f8909ea73bec310c80cb16a3b3d09bf81d553fc04f7e42e. 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/GX4R52318651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18db87de7c623ea6ac385e6379fcad92bcf0e616bfc0fba4ee6488b543f2c38d. 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/GX4R52305770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3047e053cbc7c14a550dfa458b3bf448c2ed0fb9fa30e96879057070a95176e1. 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/GX4R52304778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ed79632d7d482cf8c7571f58080fdf3eb836a925502b61be9523c7fe85e84f. 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/GX4R52372154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc1ac403089f69f70543bf3334e0837eb62a9abeabaf6d762efd053923678d0. 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/GX4R52392124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3174b4572b34716f768bc57913b8db23c6eaeb550f266e714c222a970768d52a. 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/GX4R52306983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9266b91d5e064cf518947a6e45c5cba37b487509cede820bb47bc1493c941e. 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/GX4R52312103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11bede9db1fdd8588cc19cfd64fc8427103af0ebaa63f66f9e688ec146181a8. 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/GX4R52321654.