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 0xdea6fe860c9e43aac19aafcc8e71b3fca00dbbb15d6cc1edcf9c26434dcbdc5f. 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/33bca59d-86fc-4ce1-8a48-1035747e0053.json and https://artists.proofprofile.net/proofs/artist/33bca59d-86fc-4ce1-8a48-1035747e0053.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 0xd6c438db4ef7ea888aa48e9ede85c574791c22365d82527bf946426b39c76a79. 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/USCRI0853302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e33a8b47b0a838e67646f6e17fc84361154bdc9d4c4f616612374341beb08e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZES71964380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea47ddd2823872475e6b62aad82b2d3b245b35eea576158c34fc3272c5b6af7. 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/QZES71964395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8153493ef8a33ad5d6618e36f548c0a5c89ead265e1a0a5518a3907c383a8fbd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLM2126234.
Maldito Flow (Salsa Remix) [feat. El Clasicom]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578a10c64479ed52114ce5b52cb5bd0c0a8fd7b38388b8586de8c383155b226f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ITF252100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa7d6c7ef36431a7018bab6f367f029478005f00d39e348471d545ee7f09b55. 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/QM4TX2238624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fe667348f1df5fe73184fe89647ab784aeb4453e4569d92e580ddbbd7e5f7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TX2476667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fe667348f1df5fe73184fe89647ab784aeb4453e4569d92e580ddbbd7e5f7. 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/QM4TX2476667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93ac61ebbfa64ec1e349401befb50aca1517870f5322e1229f25b68e7c0d113. 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/QM6N22416492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7383b3a2203c08c1fbecd9a39f991c5f426a2ac2f711fe91161d8c31e3c36dac. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM4TX2396809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c654ae7edc10d7d9dba15c24138900e66dbbe6ff65e8383cc60524e8d0e5526. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:19Z), 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/USVER1100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a2d175ae5752c9b1617f3ee15aff40ab8e9682f588bd306268a49f4b1d7404. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMDA62451614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa930ea69251d64c266cd8acef26ed6fb2b5f1fd8a2e1d92343499bc382d2654. 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/QM4TX2595127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc06106ebf75090a669c469e3f7126c352a6f979c06c7e871f4784225aa3dd4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMBZ92558163.