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 0xfcdb3c3e63dcbe718cd161f6a1fb9710a32e95d36784ebee6523367b128a3346. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99593670-ff3e-4080-96b0-d201fd1c3c14.json and https://artists.proofprofile.net/proofs/artist/99593670-ff3e-4080-96b0-d201fd1c3c14.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 0xd07d2e92aad1692b08ed03f25d8c9404c23b23da2337b400210948e06d910da2. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USX9P1417256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64735ec41c3ab246027bcd7a3a9ef2a57f2c436de4eacad96a639091501ff386. 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/USX9P1417260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c8810d8b98c00fe3225f48c60636b3b22ab11b6cccdb53d566340f5d4feaf2. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:59:34Z), 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/USX9P1417266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c9650231a80726b39599e73f7d99bc428ade183f0aff53454e63fd5f928799. 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/USX9P1417267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59091ca0d1af9168f694a3d1a15d14f42d8280dface87327549cf6e0afc7aa2. 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/USX9P1417269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5bc6495d99b482861c80374a4a79c62932ae6de49d3fb6d77df0afb0da2be3. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM91982565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aca21e94f37489edcadcb840691d54e3bbe13724c948f53a620a3cd90a402c9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USHM91982566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeeb6aac8b2c290270a9c4a45c7c943f602fec0c1ab234842a05cb755032d3c1. 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/USHM91982569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d25630b6e350fbb121deee20eaac703cf80c8ccbe3593eea11382515b3284. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM91982571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97a34cd7fca3705c9cd5384cb90c36d51dea422703c012fbf2cfb023b016e3b. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:45Z), 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/USHM91985200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4882b1b1716e4d2ce509918a270b3830625a4d2aa0a12c80994a52b8bf49b9bc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM91985203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6f249de920eb457fc8a9dd95eb43096b45485bfb1c2d5c10e853d18d5a5df5. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:16:13Z), 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/USHM91985204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4a31af7733d89a13e494655b335c84ed7d2ac37e6eee5c44c4c7e2ba31a3fc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USHM91985206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae26ae562b7cf599d5f638ef46e78abfef8651ef4d807ff65072c0d81951f3. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USCGJ2373435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd10e443ab03f9daabc43ae173da49fc99a8bd71d5f351665f1db186c558748. 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/USCGJ2373436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fb86ae4ff5bccf89039a71f2a8528ca42716d2febb291d75676da86534829e. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/USCGJ2373444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa3010b79160e9b7fd8b414aacd8c3efdd3e645bea5028846c851e9b7fb8502. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCGJ2373445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5aa667e1a25521c7bcbed53d7710488134a161555acb84d6ccd33be83e042f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGJ2373446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea385f5fffcc5d247d5324af6766a40ecaf878b04ff6dcb30cdf49891aa0d0d. 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/USL4Q2427177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984424b4111995ce7316ae9f6544bfb6f86f6e6aecacb360c51fd9bb9cea97d2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USL4Q2427178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082488da6fae17991a786a777422be5bc5eebcb70a483c286bd34ff42c3a1528. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USL4Q2427179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1d3896c04d6693bc3049ec871c5b4704b88df8675188c6e874894a7bb8e61d. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/USL4Q2427180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5060360646544c5dcf1f17203b9a94983d73fd71044a75a15bea3d0675d1f5cb. 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/USL4Q2427181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013364bb5cadfad71c052ebebb6e013e45d735a8b7cc923b5a590e894ff80597. 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/USL4Q2427182.
Gott Erhalte Franz Den Kaiser (Variación)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc77751676758410df2cbcaafe0036418ed4cdbed89ee0d2a7e53390212bbc5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USL4Q2427183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12264fa4f845e89db7acf4529011cb0d3ed79ae844ceeee62475ed046c2011bf. 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/USL4Q2427184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd86f31d7cce59568fa06bc7980afbca99a78f95e539e6ad2110f95f6335f337. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USL4Q2427185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe479c684929b1f1187a4957173ecf017909f4d8da1e4e9edc1c44af22408b91a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:33:40Z), 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/USL4Q2427186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a871125ce735c56a30ca8f27579a968fed2fc47094ac763438f30259f63bd4c. 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/USCGJ2571885.