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 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 0xfcee374331e314766bf7c597085fbbe931b272ab440f14e4fb1514d964e18b21. 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/c0952dbf-4fab-43b1-a0dd-34e69f684288.json and https://artists.proofprofile.net/proofs/artist/c0952dbf-4fab-43b1-a0dd-34e69f684288.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 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 0xdc32b803a347180f598c3a2f93272fe498001c204830b988db890c86b3fd69d7. 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/AR5UH2301775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95db38f9441df566d9e2d5ed97176c4d280f4b40cf2d9241e00c78775ed5e93f. 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/AR5UH2300525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f90911f2bb9a742e24ec2ed04abf36913214d01fe8726e82a627d9f8c0587bf. 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/AR5UH2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64075faafde417274b255da7ee1071c757c80293043d4edabdaea9dd991dea6d. 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/AR5UH2302225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851387582d8de4eeea072fdce16651788d44fe58e579ce4ced9a599858c64ce7. 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/AR5UH2402000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6dab0d129780673501ab9e4c513a3462082a0521602bac6e2948d995739cc1. 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/AR5UH2401963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be24a41fe76c48f4870ac186ee330c205234f3c9c86559acf1daddd51054949. 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/AR5UH2401962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30ced3f05a6b86e44b2f55b785130774404758df71af9d20656ee5acfb7bc64. 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/AR5UH2401948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa784162f34febc9b58a9349252409b7bedc481bec83a7645ead8f413470baaa. 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/AR5UH2401635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216adc2b9d8c7dc99a5dc9f5109ad62de785e795a99b3c8e27e9a86d0c2e7121. 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/AR5UH2401250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d5a3bb36b408832702749a7d9e60d419cf1a3b17377015438a5666624e998d. 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/AR5UH2401045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d74919d2514b58e52348849934619cd0f441f83eea316a0d13f9a282f2cb4a4. 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/AR5UH2400983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4d58035dd75cbf440706ca06c5acd627a6cebbb5c4255e535271757f6656be. 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/AR5UH2400928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ba8e650f5311070992c8d933f053db79a880d13a5a340cbae3a246e24f0fcd. 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/AR5UH2400827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf173387771c2cd3e1957580cfcb956d84affee2bdf28a440862e11938e2e8993. 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/AR5UH2400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a0fbf3521793391e505823826cb28ef0852e1600ce6026ffea6e527c54fe96. 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/AR5UH2400767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128fa9396742d5aad9199fcf445cfbc7de0987a9f8f41925dfbe9f44eb5a6644. 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/AR5UH2400734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4a4c43fdf8ea65a67f954b931436e0e171b0d43b6845fd323993ee0a3da3b0. 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/AR5UH2400704.
Al Ritmo De Una Butaka (Cotto Rng Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1f385c2f739e06733ad1e63ac4886903071f9d2df9060d7253a489152d7338. 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/AR5UH2400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1db0c5e5bbcfb44cb5e8dc208a651bd073a5f3231fdb75f3ac683f36845d426. 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/ARYQE2426006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb838feb518ec76ddc309fa09dd5d5f37767ae8a2a1d29786107fbd0e41af43. 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/AR5UH2400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306755cad7210a137e72c6891ae351488c41a655b8fa7a768a25ddc486a95e0f. 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/AR5UH2302568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffa47f628e8056a8214290310928b085339e940006c7ed65ab17bfea25a0497. 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/AR5UH2302387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2436993d9ae80122dacd38db3a1fb91d1a5c80288b643708275dfe18351988c. 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/AR5UH2302170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4121f82e72f1d874d73d6e433348c3f1e08cbc277874b7945656239ee27222ad. 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/ARQIH2301795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694031be17efa835e38e0439d5cd3dec6d1f40dc7f6596d4440f48827f793d85. 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/AR5UH2301767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4995d6870e45b377702551d51761d064f0122c14a55f9715a709a806d63da0. 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/AR5UH2301558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f18eb1f5b1db026e8d313879f36f328fe1ffd25b2727cec91c1b06bafdf4ff. 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/AR5UH2301315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe901f37271140782189ae505a26f9b54a0bc03a6cc6d77a9d9d45b9b55ae3d. 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/QZNJZ2330058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5411f8d105ff31e2f7df6487dd8428d4c4c5826de87c59b697e1061b4cbee7af. 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/AR5UH2301143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0519d33e99a4aeadb1d312cc9f0a6a51a5b2f3127b35d5d0f1866ab3a5f4e7a7. 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/AR5UH2300985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff18b395986c897b8f69c8ddd85e92f796cfbee00ef9bae6775d4f3dd065a2c. 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/AR5UH2300981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88409430984747118afac638129a97d1777c86e14a4eeab95735eacda8edd667. 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/AR5UH2300828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5890a363a5115b8903b5e87b4b7bf44c61c7036460472c07bdb8ac5e41723687. 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/AR5UH2300431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5c7acf48e79671f6fe96930e23fbf9c53251ef82365cdcadc1d4196986eb8e. 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/ES5702201758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f18eb1f5b1db026e8d313879f36f328fe1ffd25b2727cec91c1b06bafdf4ff. 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/AR5UH2301315.