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 0xafadf3bbdc2e2bf47959be56da00470291ede9162973dde9890ed38e707da97f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c06fe988-c948-42de-ad63-98bc70849c59.json and https://artists.proofprofile.net/proofs/artist/c06fe988-c948-42de-ad63-98bc70849c59.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 0x3ad2c75c7ab2fef0e3c6a7cea1a815c6223e33007385ad7923badd1be9e4e0fe. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAGT2376963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560d3285e145e084778a362cc6b4d5c95774f330b828d5421616d88459753974. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAGT2376971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73613ae20def9a4e683fa631343a165d01d677ccf571e02029b6f0169baa4ffe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAGT2376974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9950e81f1a8d6c9cd11f39a03f78e9dd1209656e772b81793d20a44aaf23491c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAHB2314094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aa0b45b6111e3aaef80b9150f671e6b7fc0f1b5a47f87f837665d810fd28d9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAHB2314136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1672702586f34e106e3b940b3cdac18581fd0f1a593094da96c1637ea45ca07e. 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/TCAHH2363510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca72de11f3bdc9855865dd2f15740397a4ba95bd1d7ef714808335d6576eb2e5. 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/TCAHH2363515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7ca32bf2f889ff2c2035d069a12902f81309e9683ade221c4d49c66f6e70df. 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/TCAHH2363534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ac0076f3168e92f2cf5fc7955b8e4a59e5b9756885dff329931549149e6c08. 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/TCAHH2363550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519c59ad2a3eb2a24dcce53f8ebb08a3186d2e9da91b68548c154e55669726c4. 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/TCAHH2363560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a8dee6fbcc8c8b5dfd13d7dc5e3a7163aacec1ab29d52b8a97e38f5b4d8ed3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-19T23:55:14Z), 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/TCAHL2321524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607097ba0e5d738e0fb8a7a07477dc5df8a17944a564b29da54676e14113e87c. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCAHL2321527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4f365dfcca8019b21d784f6bede72debcc20331acbf859dd9c800d0e578682. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAHL2321531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb09f54aa1f5ae4096772f87686046c1a7e8eff32a5b7940d0fc8707eefb4e8e. 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/TCAHS2368880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596d280ebf96023585dea81b3405875b75100fd5bf8a33ea1e7450d95573a3d5. 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/TCAHS2368883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d9a16a958c6ff3f6781315a1a3543938da2a881e398967267bd6024c79f2c5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCAHS2368886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd694532c43a268d26d471ffc7aa992621a8dd48ab296c4a9fa651770b685ae5d. 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/TCAHS2368898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274b5b14d304b039dabc71e8830346024f07ce55f73abe667c22ad119ed885ba. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US38Y2417390.
SOUTHSIDE THERAPY : Problèmes Particuliers, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b8665f07e6f7bffd3bcc8f9e8f1f21c3dc8f596c5c476d50d9320bdc86dc0e. 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/QZWFH2339979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8b14ae4571c19e6df3aff76e2ee23f282f6ed094bd78980ed1e7f8ad2a438f. 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/QZWFH2339980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274b5b14d304b039dabc71e8830346024f07ce55f73abe667c22ad119ed885ba. 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/US38Y2417390.