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 0x7e39054f7122527fde4faf2897c6177c84153aeb3ae2179cb6a372b35ba58e75. 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/87d3b81e-050f-46aa-9063-e504f1ef0dcc.json and https://artists.proofprofile.net/proofs/artist/87d3b81e-050f-46aa-9063-e504f1ef0dcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Crazy christmas! | Christmas songs! Funny songs!
Veggie dance party! | Funny dance songs and music!
Poop attack! Mom just pooped on the cat!
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 0x0f31df35ee7b8ce62bb574bb581ce9d84a85f1b8d794257fa2e00ed51c75f57f. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZES72556212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e66ecc93c436faea598526a0075de1dba9192dbeb241c21e0e4e622d9683c24. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZHN32581203.
The annoying pineapple song! | Funny Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4915fbe77281debdc0d9cfd7b9910b91cd8facdf6ee85fd4b7d41c645caf37c4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6K2597634.
SCARE BUNNY! Brace yourself! Don’t freak out!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae80facf918fc084e796cf963965fa4fef11564712adbcb41f13ca58abb5a9d6. 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/QZMEM2532492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3607b248ecb27e5b0133271add1478bd0d06e80207e90ca2099de0450097cad8. 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/QZMEM2574662.
The Fruit Mice Song! | Crazy Funny Songs
Your mom’s name is Hank! | Crazy Funny Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5983f1f953ec43b859dd8080851095aa9c7deae839a3ab5020fcac5ad86b5039. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZMEN2555593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc908d746b7ab90b68862fdf6231ed644a1cb9a52c817a93915859e282ff51e0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZMEN2592996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4533c0aabc5d58ca48bd649d3fab8758b6b8317c7c424df1589783eac16ff0. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZMEP2525610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25c21060ef5474a4d6f0e7a7792036e74bda4b2f6784157ab34cc475d249278. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMEQ2527118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18241133252d8d071b2b255f845e2cac45124358ba67c72e8c7376b739d1ef0. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZMEQ2513001.
Banananana Opera Beat! | Crazy Funny Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abb246e773414f8c2b266b230b8bffda6c53ca730fb16d1ffea14c12304aba2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZMEQ2505159.
Easter Banana Bunny Song! | Crazy Funny Songs
Annoying Banana Song! | Crazy Funny Songs
I just pooped in my pants! | Crazy Funny Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264c5478cb87a5a014174ed4ae10bf1baddeb618a821a0f9f5342dea55a84936. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZMEQ2591923.
Butt the Alien Songs! | Crazy Funny Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6cc3d1ce88747825079db6cabfce66bf5666ea9d100f40416739cbe20e7394. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZMER2574316.
The Chair That Couldn't Bear! | Funny Songs
I Saved a Fart (Just for You) | Funny Songs
The Monions Movie Musical! | Funny Songs
The Tomato Potato Song! | Crazy Funny Songs
I farted on a rollercoaster! | Funny Songs
Hit Me, Baby, One More Time! | Funny Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1181fb692da2fa7179ce1d66633f7a6efd6a63b1fda61a9514eb310150e51ce. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GXHND2523404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b559345a403789df5283c2c3fe0e4922acbd77e88c44da38cecbbd6975de34. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXHND2530435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed693c3d8060ffcdbc7f7e2f8aa2b2a663361835268a6f41c6d06dd40ce6519f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/GXHND2590999.
Mario Tomato Vs Peachy Luigi Rap Battle!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502442f06516cf7731df427ac3c1e0dd09ca86286ac4a5606c940830311a8378. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GXHUT2520938.