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 0x9a716323a548e2300d0b5f3f583ea8803bad56fdb5e6dd6472e25c7466555864. 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/3e1ae2e4-f18f-4df4-92b3-50544e44405f.json and https://artists.proofprofile.net/proofs/artist/3e1ae2e4-f18f-4df4-92b3-50544e44405f.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 0x1d190a4d14b5221c83fb07ae26385e6c8abeb374ef8786b5d5b02ea525a3e73f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZSYP2490565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ebb8ff33283cbdaf2ac3ad80fcb2ba1c62080af913d7e9c5f35d701e6c30e9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZAKB2348673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44afdfb2789348206db7fd9cdf38e12f10a17293be46d2817a398c02cc99e82e. 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/QZAKB2348674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe523619957520fcb9e552d6ae268fab5e397e0ad6a765ccc9905119e5a531da2. 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/QZAKB2348676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2db201f93eed655891c99aeabb01429fbbd0dd22d095d55739e5e0095b98504. 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/QZAKB2348678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c5cfeb985a0fc3dc099a4d808f04724f87c1faaa659ac2ac291f1ba7709286. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZSYP2414778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0344184ce4f2dcd3068b62b2ba1784c5663e8c3e9e1caf33156657a48f5035e7. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZAKB2348846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5a538c271160501f8acda78aa9b5274041320e81208e514961d17eedc3dd4b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:26:10Z), 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/QZAKB2348797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0fd3b947ccac4d6483af558ac8f35b9066c4db1436e1cd79690682fdcf1b9f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZAKB2349049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6f598c2a9d95d559ea0d12ac19ab2bf7cda869d12564206251206190b1639e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:54:51Z), 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/QZAKB2349050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa682a3ee4dffbd154dbf6dcc6401b5302010d91f6d3bf5e633ad8cc74b2128f4. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:19:24Z), 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/QZS7J2426497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb06b75622fdd6bce7a38513ad675b6d73139e1a3238774fa7823f7f7c3e776. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/QM7282411688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224bc46c2d8286c5d5930b6f0541b5c6f818a243482c2dd047d1f6f610ec9be1. 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/QZS7J2421282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb9fb2a644c757be4e7fae84e95bdbb931639537f9575dfd52746f8c5cd02c7. 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/QZS7J2487169.
Dale Pelo A Mama (Guaracha, Aleteo y DobleTono)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58104ae1b1a9d015b0972fec6fb31d7b9b84d85d3f0fe1105fbebb7e5c14d3a3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZS7J2468198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd9ac16f58013d10c5b0cd69a0375075af6a35e073a3f1cb6cb6c5347954df0. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZSYP2461328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945f8251f42b72d528417eb40f328c1d29dbded74c085b684f4369decc8c0a10. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZS7J2479240.