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 0x65fa36f7c4c6eb40805c67e2b9a7d3e17374280763646db260055103394eae8f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/896755e6-94f8-43a8-84a3-2ff14e343c54.json and https://artists.proofprofile.net/proofs/artist/896755e6-94f8-43a8-84a3-2ff14e343c54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x4d4af55f3d21ca1883eadcd8770a41e4529ada1edc1e405bf66f995eef089e82. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHNC2584233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6074cf2d94fdb56562efbff5379bcd6b5b6e227cd7343a1fc81241403c2c4205. 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/QZHNC2582281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5754af1ef0e2905a5dd2cede9460a82f74e2a17d85bfd03029a2ef8cb14b8af. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZHNC2584203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259239c9f47aaaa9f7b4b240c7e128a57d4c81865694f8845298d67794481e3d. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZK6N2504914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc25dc9dd4763603d0bb4db2801a93c044f0e079fca969318157889625f2da57. 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/QZK6P2536667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33d1990a9761c713c21902675d304b2fad8ef1b99a3ebe997e33b664bd940cc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZK6P2538498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35942c5707ebafb1ac8256319a27cee6740ed21f03eb20452fd96bf52c29913d. 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/QZK6P2538452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fdb71aef0060eab195893ff91b49392a41d22ce0a7a0449554f83ef11acc67. 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/QZK6P2538485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc433b7a6b327d1918eeea6df2f3c24b4c66c02ae1fc29bb2e1fcd3bf1c5d10ae. 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/QZK6P2538443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870af4120afebbb0d5ec4de4a691f76490d984fb2c4b2c6e669e04626e4b3dcc. 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/QZK6K2584183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a8099086513f26902cc51deff1783f8d3cc50933ddb2544e7fed61d2d11a0b. 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/QZK6K2585360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724bf9fc9c2b204bd31732b8650bfc980c9497cb6712216923441a748b0c54bc. 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/QZK6K2585334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798be527fc69086b68beb7db42993d13029e52bdbe94d855b8ec15a2f3f715a0. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZK6K2585354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5857cedff105764713908265b7828d3a1f4cb1209aa9bdb244aadbf4860de8fc. 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/QZK6K2585356.
FÁCIL PA QUE ROMPA - (INSTRUMENTAL SAOCO BAJO MUNDO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa638ad37b98b0e56c7f4e1daa4d11dc84661195877e9e673ce1fa0a004863931. 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/QZK6K2585355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0252e64970a1c09a38f8faf88bcd584dec9628c418e2897a51ce5f7f04ea7fe2. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/QZMEM2594897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9556a48fe2a3bb55126bb96f4444b37c7fbc08940a3059468343219ecfb9808a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZMEM2594894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625772397cad02502931d026f40b999b086341b02fbbe0439080a12365b1a38a. 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/QZMEM2594895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc212d6582566a082053cfead344c2e60665a8e079e8fbb7f659d474e8a2f8b. 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/QZMEM2594892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea7229f3ae6fc9347097634574aa0b20ef634831076970600c9836be30096e6. 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/QZMEM2594905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9efdfd2adf7b124d2a0da8617212441bbace505d4adaa394ed26bcb48ed55ca. 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/QZMEM2593462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4169cda21188442d6a712951be62bc09083b59d4219ddbf6af836039be0af280. 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/QZMEM2594902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceef47e67c06d3e3c2df9b311965124fccdab1d6b48b3ff8787ca0a32b97028d. 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/QZMEQ2521278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d2408250ab0f1b114affb0f3215d8bf26d381029b41a7ee30f7d7a17cb8a7e. 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/QZMEQ2523352.