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 0x65b5f752c94724d39d7aa68510de2e4bf088706459d4c9722340ab20179ce1e7. 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/c9ce25c5-a73e-4856-af76-97bc44680168.json and https://artists.proofprofile.net/proofs/artist/c9ce25c5-a73e-4856-af76-97bc44680168.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 0x9c017ceb7fdb12a8f58e36f3cba49f376a9e432737c4f33765072337ae63af00. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARFQW1400270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48999f498c338f52012727d6a0d156dd4e529f89242c8ec6875f2825e478a6de. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/ARFQW1400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd712008fa2d645f29bff36e2bac051936903080465ac058c70d62982c4e0c7c6. 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/ARFQW1400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24281ab987ff347ac0b88f74f2a693c0779a6fb99c9e0c396d5ba61746636a21. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/ARF061601300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed77478b6811bb154c399139f8809c772f440d7956b7957199aec48ea4741ff. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/ARF061601304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed31fbeb9455d37e25b5ee873baa91df9238aed72c2a58673b07980b0068908. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ARF061601257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497bf2fa78efd58d0f61aae7789bf2d11efc6f7ad719335bb2aa593d92596505. 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/ARF061601258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac4ba42a426877aa41223b88653e4b55bd22934735c8bfbdb34c125023fdd4a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/ARF061601282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791699b328195f3f82b3906e20be0639facdab93f0497c541c1bb3f06a2866f3. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/ARF061601284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333c3b1cb6d0fbb825377bfdaf1b6b637b0dad8a212a72afbd1bcd2ace4a3633. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/ARF061601287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5d0c7c40f2c533d3555c51f31e82bd1725a37a3b36c0273d6f8c71205bea82. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/ARF061601288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b84ea5ed9e1e54e67fa5b42ace19ad6dfc0ed42a6add20dd185e4b145292217. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/ARF061601290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f5b11ab65994d0633a13c7ac9dfd30bd9d74443e0884abb6cb4fd62040f7d9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ARF061601279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af6e580805adf8451c2ce4d4649bc52d382ac795652bfb0490cbec72d737972. 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/ARF061601245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e11b476973dd0f85f3aa490aef30bdacf0a5df4122c7c74ec900ca4b851338. 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/ARF061601246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b2080aa9895e60356e2da01b8a2327d1f4e147df2a1e3e5046561e95a97090. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/ARF061601247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb11c643a4262f7f91d8a041730715313dedce3bf347f7c50b2ec1eaaeb56929. 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/ARF061601248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c150088a26f85843698d12227b178aa65fcb3f326329e94ea7ba7167c3b015f. 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/ARF061601249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd735ed6cbff054a62abbcf36c92ba230761364269b5a79451dfa8148021d6c6. 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/ARF061601250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2b23a0b9d7ea8fcd8c43d15dcb148f9944438d7f3569906b016e64c1fa7b99. 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/ARF061601251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e3bccfac06dc4d3f22b777f934d3bda69cf87ef494ff32b31ffc0c75618b10. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARF061601254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26aaaef3db0a2ac2d3d2aae5372997afaeac5bf5cac1b9b9454688a2b4d554f. 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/ARF061601255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66882bda602b30a0b49fe036b8bc47ea59f6eb0aa2991ccb207d72f983f54ef. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ARFQW1700551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc6df091232cd79b4aea1f968341edfbf2a257064b13fef5aabe0e8b7ea8925. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ARFQW1800585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc353d0dec25c088c812fa054d653299ccb6b56f0a9bcc256431cd18109b8e295. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARFQW1800586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88e183de9c5c4bcffddb5c4920cae41fe899ef9811be924fe1617429b4eed0e. 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/ARFQW1800587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c212c1625b699b8f06e19a220af04596cbf9f30cc8e204e0e816cd26c3fa9b. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ARFQW1800600.
La Gata - Yo No Soy Tu Marido (Enganchados)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641bee0cf30aed5f5baa33341a702d06bd52768d9dddea14d1e27120f90c5fe3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN82073284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c8955831991cfda24ec9293aa4d01f25fa86a158d2bdc2b38f5bdc285d810d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN82035000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085818cc28096cfbae781d29c4a15861f452dad793cdb5a266d7f1fce80c374f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHNB2031399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf094e492f7021f3a23fee006054a738518b449953f9154bab7a2c3082c61491. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/CH6541678897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9a154070f85e973be916a7b1c96fe246795562706bf5122dce395e0962a585. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/CH6542337518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609053a2f326c22b1aaa2cab61c87836866412c2c141035a84e01ee2267229f6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CH6542349639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a28a5ac5fea7a1ed428a537cf51bfaab7e91f9f65640a98c66c307796631d83. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CH6542351839.
Lupita / 17 Años: Bambanizando Live Session, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac698366da8e4b18757393bee11a027e06a974f2ab4281eba6fc807f3f960140. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH6542375216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f16ae477c1bb925cf07929aed7a02308d29015cf7c78f957c6ee710818bb46. 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/CH6542421425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d55a30c3162d93a96400e2185e32c17858159c07617d349fd2cbd1e60d4416. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/CH6542461807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e47d1867dff63d466b336094d6efe632257898896323efc703b30b2d0ef1c. 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/ARTQW2300039.
No te creas importante - Los Bam Band Orquesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf0b305a827fec38e00858c35490e4146f2efb22cee240c62b4b4eda648a7a5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ARVW52000196.