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 0x303aa6d63f27931e6c94201d43f0e78d59e4066ea9107e8c9a02a66d7f6042a3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ddefba9-ca05-4dd2-ae13-9272f0a3847b.json and https://artists.proofprofile.net/proofs/artist/1ddefba9-ca05-4dd2-ae13-9272f0a3847b.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 0x10ce3078f52b331ea4bdeb6f06ddc49b6865a66bb7a1cc463720b0e808c44ab8. 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/FR6V81029402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765f437ed6afcf90a25b1ed086dd8971c5f6243eac662959f0d585e88ed84be1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V81029491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2092c3dbe2ee30ef491ea93301cffe18d6600b7af3ea58063714ff4520afd2. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/FR6V81029494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e5d882d3e87e3403390ed7231694d55e5e27d9476c18b28bf716b18de483c3. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:42:17Z), 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/FR6V81029509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ae438bc1f057c5cc5bbeeba3620288ac7586104ae45026fb14ff7cca5f4d24. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR6V81029510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1142f7ca03d0c5bae8a33a1164a1406e55ec180fb748461a806432de50d61b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:07:46Z), 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/FR3HK0800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8d86a70e3b231566ada2757dc7807b0842f6aa32d2b4bdf475f16ba47c3128. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR3HK0800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4984325dfdd75b5cc3d40f5241546f4f9c46640079282e02b85ddf0f00f6cb1d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FR3HK0800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde052bceb5ff75ae38219e14b6ec6c0c77c7032625210c1604d4993c158aec0b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:02:36Z), 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/FR3HK0800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e59daa8e28f0437249e1927f5f1645a3ce6450fea67d17b52cb787dbf5c4324. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FR3HK1000260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8ad806505949c2f0ee4b59b03650ba15c9fa065df6c0e5716d3e5723c0c817. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FR3HK8600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2ff3819742a3904eea6051f00e8176c636ea86a68bbfd800cdd8d17f41fbe5. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:35:34Z), 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/FR3HK1100510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21e8782b225b10af60d80f63ecfac6c4c46b89989ea21cd0a15594dfcdb7b97. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/FR6V80371757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cfe4511ae9db8c2c4ecbe550860975c2eba6120bd1d3b56b6664df5fa0bd53. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/AUXN22031446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023cad211c6e70744b01ce0de29ae01232da613d6376f9962162c1e7d6d7c44a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR6V82402258.
When a Man Loves a Woman and More Love Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08ed19365ed3b1133cba3556d20cdea5dcdee2f1a8ec7365308d3e80795cf73. 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/AUXN22031455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa697893d55a07cacea5e92defcd64edf1b9319814ed460325cc3354be3d64324. 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/AUXN22217995.
Play a Little Game - From "Le bar du téléphone"
Les plus belles chansons, vol. 2 (Cinéma & télévision)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2832471b59f978b4bdea9ab98b4b3bda79263e0b10ab7369ad42b94f03b523a0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLF360900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff138b13b5f95d913a0fe7c04f3654f33cffa8621368052dc88cf1938faacc41. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/AUXN21939631.
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 0x394376a5c2c84d3154566e23b23a4c3ae83a3a7490ac3a831c7acad9769ba22d. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/FRUM72401100.