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 0xe3c6b6df2fcfbbe038a10ba5ec416db2c9438958497ce1c4185d302442a04bf6. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c8cba9d-79fc-48ee-98c7-75cbaad66246.json and https://artists.proofprofile.net/proofs/artist/8c8cba9d-79fc-48ee-98c7-75cbaad66246.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 0x80b1b2296594da050aaa287ec8a5d17dad3d8964f539e9118bcf3ca416be0e5e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZFP52016068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234aa12fe890befd110ecfd446afe71a0cfdef398f313bf54227a9e538651985. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM42K1940856.
Laura Palmer's Theme - Angelo Badalamenti - Clean Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfecf96eb92fb808c14a7a4248c024559c31a148a6739d34759dca4bab0b085. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/US83Z2215558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e40b7878fdc165633e1f7c42f716cb80750891a71b5f08219da2ff53a79328. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/DEYX82248182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a151a77317d9f2e30c4ffd6209ab67a25d66b6702358b4cc08871575fb3ff2d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEYX82248183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ae6254439ba147986e6516f6569a695d4130a7ac6ca3e0f85bf28a9f7a647c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEYX82248180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77bfc06ec9cdbdf03a6a32bf7a247ba8eacd3b4ee8ea6b4b4e978779052c635. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:36Z), 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/DEYX82248181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b692d6a90c75d942cd268da6e6d8af114e6ab1b1035041d68499dac079d1ed. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:15:53Z), 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/US83Z1923880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaaee4c9f0757e44c2f07c7f303e20264f0ead454dd672c237e70faed3484de8. 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/US83Z1648997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6d93e6dd620a130c952160be00d2ddce7b619ed84669659e23168cbf30a638. 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/US83Z2213164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958d788271ce70cf751b3f9dff7351722cb7f1f961fe31cec43cdfbd4b02f4c4. 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/DEH741408563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c808642c35cfc27837e4e2f317218d7cb60dc766018c7dfb1a8ebd09716e42. 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/US83Z2032475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59047c67bebb6f83a50916ad3dfe5b2d922f27b93936a298712ef7732cb926bb. 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/GBKQU2273439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3847ed46fbec1060309586e1563589f95f8d5cc3980630d8f58a29ae36e21c8c. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEY472179083.
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 0xdc25f52fac26f2792253b0ad7664f207fa0f82fffcf4b653c141329bdca3cbcf. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/US83Z1772654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734e4cddfd25c108ab5a3f48b35396dd35ce1a6598dc2085516d8ee1a05ed610. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/US83Z2013104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56f16c0f35d795a3f49ec1f6cc04cf20eca1a66d4561e2bc1ae800fd9e47a79. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/US83Z2132735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184194ec6494235d7d790b037898ce7f8e724943493acd7b4b9fe8fb831836f2. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GBKQU2273440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcc86d4cfdcd5d477654037cf415097562531a153854451331cb4c2517e9cb1. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBKQU2273441.