1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x77a237461e5fb79e7aaa4fb52a51565ab2ba6122a66dafbe88ccee3acdfb929c. 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/a1469d81-7244-4456-91e3-dbdfecd03c59.json and https://artists.proofprofile.net/proofs/artist/a1469d81-7244-4456-91e3-dbdfecd03c59.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 → block OTSBitcoinBlock must exist at that height 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 0xcabae72af84aa8f0d1d43a1a228df5bc0909e8331e9df67654348707af1fbd2a. 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/QZWFE2412033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c1c1da0808595b82ecedcf4ba53c6e498ec6fa43af5e43614750c68c37cf71. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFE2412034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a2600bd78699cb75ca2261d5788eaa7be3c68dfd73c13e47647b44ff98b3fc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZWFE2412035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6922daf8ca608312fb886d88fb82339b31ce716beed285e516d64c8179ca1bb4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWFE2412038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952a7f18e2d9d08818e10ad1b07943d65b84e2e1053d3a9c3e6dd40480caac0d. 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/QZTBA2252500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985d3926ea3bbddcc0b97d5cb2e56d27b7102aba03a53f5555bd59271e4dbee6. 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/QZTBA2252501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25da4b42b0ce12bd48c50c629e2c4976b79694e4ade7a7ec3d7ebb179ba1a510. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZTBA2252502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655b97ac89ac58fab54dea1eb927ca3521115347a767b5f8db67a54c87a553f6. 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/QZTBA2252503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84f760ebb2c4787b1888d1ec539471db3292e3c52b36018945eabb086e21b57. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTBA2252504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1e1813b8167585f98d7a77a02a5b7684d11e4890b2fb2de2b326399f03ba49. 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/QZTBA2252505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6db529490091646930eed5057f7f7a9c47c7687d40fd08b4ee847f58943e2bf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTBA2252507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be31db2e79b60dc7789775766b5129c6c127354dea94c2b446fb62179bb5738. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTBA2252510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839556ce4b83fe30758ba2bf063b91afb4204cdc9cb571f7f236c6575880828b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTBA2252511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2739bfbbbe8c020c635a9f63a4976e81ef061f1d5d7d7069396e2d74aeb0f78e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZMER2278182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0e26d5830ed6d26b8e1680a8de83bd1c7857e412599e19fc0c46f7956646f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMER2278184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa341a9eb4c8ec8916f2bc7e0843a9c65c73d5be2ef49ba14bc48c3f7449b71d7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMER2278185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11aa743aa681a7635533804edfa02acd97912c015154911a04035f391d6ac84e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMER2278186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb730bc6703056f9565827f2cb0040cd2e8e07830efcad100f77866e3b00133e3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMER2278187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695a422d2b0af33ef6d04a8eecc88df5cf77337504ab79b14c8306c0ab170ad6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMER2278188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa412e18eaa4c6084f3511ab77db6542ef2b216997718ba9b204d0b6c9582eccc. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QZES52235813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702e2f247042f7a57c462b89d208ce8e3c95d4f858309a6dc72446e7f020d45b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZES52235814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7132b57fdf704b35055c9192fa71b87497abc314faddadce5c742de000b18f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZES52235815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210d08f8ed3504bb813b6924f167c0f793f6a333a966ff2bb418733b87b2b16e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZES52235821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55899b3f7791eabd0b4929a95707941cafff71fd20cd039adc0775f1904bd610. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZK6G2173627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53bbddc5305ef9c7c2014bf550bbd29309ab4810a2ba65c616e2e843665822a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6G2173628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c93c0fc6107ea7611454dcfa1a04a8568b489b0458e9cc6a1f2d3102ef0c5b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:51:30Z), 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/QZK6G2173629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f845dad2d6804137487afa6190e241aef3e519c9504046a8e6c981661bb3d73. 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/QZTAU2413491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7468f9daed6e5688734a8feda608697bb97c118ac804403f04be1c4c3962ebe4. 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/QZMEQ2472221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3343ef6c348cb90572c068709d410c3c6cf3d260a63431b3cf4e51ae6cfc0780. 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/QZHNB2475200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b37368cb81fae5f547baa04edec4526a0f2e2e6ace4e81da1fa7ca4f87ed37b. 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/QZHNB2475203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde97cd03d05d991cc590fc0a6d24eda7d02bffa4e54d2d5742aed5a40bf814e0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHNB2475204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc630a1a63097f624894be9fef05a57acbdcd771d7388806da8d0cba50be189ff. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHNB2475205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28be1253d3489e92d3ce1fd274e5318505ae921d0f482458620c2dd1131621dd. 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/QZES52437610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5449c794a34aafe2ea94ad945dbd9552b05011ea095dd887aa456d2fc99013b4. 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/QZES52437611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce05f3f62aac9c48a38d12680afa9b20339e1efc87f38aef2b7e22a2b5f1c6ed. 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/QZWFK2346684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7084485ef260fe6c409637c7c90509756a9fc3f0b044167988422c70df1baf90. 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/QZWFK2346685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3ab101c88e7538a048755cb7eac400e6fb1bf35f3f3885b4a4700100dab8f5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZWFK2346688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ec7f145a774e37c37111da0dcf77b752c5ed4ef28244f2fabc1f614f3c79a0. 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/QZTAX2307291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef6a8fb1d4a890a42f9acfb2067337a326e18a940f0198b588ddbd0c8a58269. 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/QZTAX2307292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b4a2ad3f923b30fc8699edd6b609882128528be9028d5138fea27aa38169a1. 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/QZMER2333731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62054d42f6c0c9374647af0120c390a3dd0a4613299b528489214c559c2879e. 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/QZMER2333732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12b34826824db12ec50aba21c6f6cdecf31cb774ba58ed609383c3c25496449. 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/QZK6H2373286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0fefe8f7d880218a4e5c6963c5630ced4904c79706e89569fd3802fcd0e9a4. 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/QZDA52366204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0affe12c3cdf40f0f185389daf1c47578313b9941a395b69e15fb2b00c4e1fb7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZRP52293953.