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 0x8ce7d5cce33cf14ee39eedf92f1b4d06f2957669935a9543e5509cd2b9811c89. 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/bb9c2e13-d875-4a9f-8ee9-be9af534f983.json and https://artists.proofprofile.net/proofs/artist/bb9c2e13-d875-4a9f-8ee9-be9af534f983.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 0xa4261d3e9d4327c9fb96d897d827bba86d73c79b84bf111e6d0b5cc1e33fd020. 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/DEPI82442260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a757760fac4a7b12c7e06d22bf0c7337772e2620e5c8ea571911d41f78929e. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/DEPI82442528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2bd504dbb8bea6cb6ad84df8952db5bf5f0eb166dd3490fcf35718d16edd8e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEPI82442532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d74d0c51b3b0c50a61048ee1a782be78701d379dcf24ff7589fd71aced6a9b4. 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/DEPI82442531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b71b0815d0ca540d8091813350fe4ae24a199cd545339b5869e4d2c32cd993. 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/DEPI82442529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfd1dfbaf98400b451cd4c29193095843b668e114c0b9cd0334e0d2ec659dc6. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:47:21Z), 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/DEPI82442982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d33d2c561a444ce30917a1fcf235ee7d95f536cab812be4ec965a9ce5157cb9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEPI82442985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc00f65a4c96fbd84b46b7b96fbb17107b0d8b322f36c4d7cb20f80d2a7788ae. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEPI82442984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74be3fefd5814e1442b37291f1f62e9a54d5e19c21a5dd888e2ad8ddc825eeb5. 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/DEPI82443334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b7a4c298bb925a33f85d568b876bd0cb3b8b3dce651ad2644d78dc1337179d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DEPI82443336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f3210004b2d580cf75ebb23b14de16682cd072e63361212a06b4532ebf8394. 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/DEPI82443339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a1f4290b514cb4816d2d74733801abf6034bb94aab61d5ecc9cf7d5d42ba2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPI82443337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12582e509fd4df99865064be95c18cc8046548d43873d47e128406692548229e. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/DEPI82443338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047c014f4015d24fa4de58f80c1f0267551c3edddcb6308df454f9ec7473a888. 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/DEPI82447225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf543e976e1c5e6d765e5fe25c2a2380e73be0f85a4b336c904018e24a611fd97. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEPI82447229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5342226e5f04655c658332397b96f0e266bd8bed9f84ee5cd9d29c01fe652a2. 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/DEPI82447243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5359dff611b71e36eaa032679fcca945d688afb9eb81922eb2a1caef52623e. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/DEPI82447245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c17a5c5adeb11d53e3736cef5a27e24e3b9fc9fe7cc73765107fa0cdca9850f. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/DEPI82447240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde9faedb27845172336a3a5a162aba4b4b6a4c264505b601709fc9ddbfae903. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/DEPI82447248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85b58aa86a3b6604b4ba9a917655eb1325a50df0204d076024d5eeb2d8bf9af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEPI82447246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658947f306a9d33d7655e1f00e9939153390260ebc6c4599fb39c24b1bf1cd11. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DEPI82447252.
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Summer Vibes: The Best Vibes of Bossa Nova Music for Your Summer Days
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791e92182a5157d646336dc66e99f2962f966b23dd39f417566a7148f68a4ca4. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:30:06Z), 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/DEPI82508916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bbcbc4af10b3f3e8c011fec2111ccbe22aa30363a1f334c8bd7d5166ea4de1. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DEPI82508923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e3193aca1b99b8fdaa816004941465a3faaea85dede08a1d7165f2c5f1056c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEPI82508921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be11b88fb48f666e850243c3bcd177c06b8b5402b1c278a594263fe88af277d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEPI82508927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132de2ff11e3acc3eef43b90c215ee002ab21ddd71df383ab332ed8568592319. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:55:56Z), 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/DEPI82508924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e55e6129afbaf7eb046f0f35c54109535704c6296293ab16a2b9c5093f7b98. 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/DEPI82508925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6109afcaaa8f4b919fbd85be6e9e7adab41bbe4f6b881610e65956112ced043. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:37Z), 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/DEPI82511118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4ddefabaecd2e8bf8ee2e8427f9458f70217db0e2b89cf92674c33dad50ec7. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:23:33Z), 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/DEPI82511121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426a5a7c6124cd07baddb43a3e477872e8cdaa54d8431d787e448c121d5c8b22. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/DEPI82511126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcad12c4895af589436dd99a923736b54ccf42ffc0061e42e8e4c4663584c186. 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/DEPI82511125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc1fb2f35efc00f0c2025a8caac90212acff7e4da5f769c565d8dc72cb67e7b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEPI82511123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54588e881863c8180ecc56787e627135dd8546aefa8634da28ca636c0f986309. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:46Z), 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/DEPI82511128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5068e37f0e5847fa2ca498301685e69750282319697b1ac43d3c132aee4f9ffb. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/DEPI82511129.